SpongeBob's Truth or Square

Welcome to Spongebob's wonderful world!

This game is close to the TV series and anyone knowing the series might find some things which are familiar, except for the characters. Basically your target is to make Spongebob happy so he can remember where he put the secret crabby patty formula and therefore he has to remember some moments in his life which made him happy.

The game is a quite easy 1000g in my opinion and won't take long to complete. If you follow my guide, you won't have any issues to complete it in the minimum time. I will give as detailed information as possible. However, I have to mention here that the soundtrack can get annoying (not to mention the voices of Spongebob and Patrick) so I recommend to play with the tone muted.

With that said, let´s make Spongebob happy!

There are a few things that are helpful to know:

Every happiness coin you collect sticks with you, even if you die. However, you have to either hit a checkpoint or finish the level to keep the coins.

Each level has to be replayed twice since the Tiki Challenges only unlock when you finished the level once.

Although you have a large variety of attacks, the best attack in the game is the spin attack. It interrupts enemies spinning AND deals damage with an area of effect. However, this attack has a short cool down which might result in hammer bots hitting or killing you. Make sure to concentrate ALWAYS on the hammer bots first before you take out other enemies to prevent this happening. NEVER use the shot against the spinning enemies, they will reflect it and damage you!

There is only a limited variety of enemies, so there are not too many tactics to follow. However, getting close is ALWAYS the key to success.

When you find power coins (especially the muscle pants) make sure to activate & keep them as long as you can. Especially the muscle pants as they make your life significantly easier when utilized, so keep that in mind when you touch them.

One hit ends the super pants but normal attacks don't disrupt any other coin powers, so use that to your advantage.

There are 3 different Tikis scattered through the game, which are Plankton (smashable through every attack), Squidward (only with super pants) and cats (explode when hit AND self-destruct when touched, handle with care!).

Tiki Challenges look like tutorial statues but they glow a little bit and have a deeper colour than the tutorial tips. Be on the lookout; it's better to activate one tool tip too many than to miss a challenge.

There are only 3 kinds of Tiki Challenges: destroy enemies, destroy targets or collect coins. Since these are always easy and straight forward, I won't go into detail on them. Use the tools you have at hand and you should succeed first try at every challenge.

There are no different difficulties and all achievements are cumulative, of which generally require you to collect or destroy things. Basically destroy everything you see, including enemies and boxes. However, before you do that, make sure you don't have to reach the place above them for extra lives. Also, we will not bother with any collectibles in the first playthrough, so make sure to leave them where they are so you don't get confused by collectibles which simply aren't where they are supposed to be. The levels are quite linear and enemies are easy to defeat, so no worries. With that said, let's start the game.

1st Story Playthrough

House

This is your main hub and this is where you will start each and every mission. You can upgrade the items in your house, but for now do not upgrade anything since there is a small trick you can use later on. As soon as the cutscene ends and you get control over Spongebob, put your controller aside and wait. Spongebob will grow old after some time and become a skeleton and as soon as that happens, the following achievement unlocks:

SpongeBob OldPants

Make SpongeBob grow old.

SpongeBob OldPants
1 guideOffline Game ModeSingle PlayerCooperativeHost Only

Make sure to check the treasure chest upstairs and downstairs for an extra life in each. We need to accumulate a total of 99 so make sure to collect every single one you see. Now talk to Patrick and start with the first level.

Level 1 - Jellyfishing with Patrick

In this level our main goal will be to NOT die at all! This is the easiest level and therefore the best opportunity to grab this achievement. However, if you happen to die, you need to start a new game to get the chance again on the first level since replaying levels doesn't work! So to evade unnecessary complications, we just try to get it done on the first try.

In the first area, defeat all the robots to open the door with the key. Get across the jellyfish and do the same in the next area. Use the button by smashing it with a spatula attack and free the jellyfish. Continue across the wooden spinning platforms by pushing the buttons and slide down the jelly. In this section you see a rainbow coin in front of you. By all means, do not take it since this will void your achievement for surviving without dying!! Use the next set of buttons on the spinning platforms ahead and keep following that track until you free the next set of jellyfish. Get inside the cave and grab the buffpants coin above the Squidward stone tikis. This is the most important coin power in the whole game and it will fade as soon as you get hit. This also allows you to smash the stone tikis, so smash from now on really everything you see! Head to the left, activate the button with your new power, get across the jellys to do the same in the next part and leave the cave. Slide down the jelly here and defeat the 25 robots with help from the Patrick coin. As soon as you are done, you can grab the first happiness item which will reward you with the following:

Jellyfishing

Find SpongeBob's Jellyfishing Net.

Jellyfishing
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

If you didn't die here, you will unlock the following as well:

Too Good to be True

Complete any level without dying, without invincibility.

Too Good to be True
2 guidesOffline Game ModeSingle PlayerCooperativeHost Only

House

Back here, talk to Sandy to start the next level.

Level 2 - Meeting Sandy

Here, you learn the spin attack which will be your new basic attack for 99% of all the enemies since it is the best attack available in the game. Use the next ability for the switch, defeat the robots, activate another switch and get quickly across the plank. Defeat the spawning robots until the machines are destroyed, activate another switch, get across the platforms, through the jellyfield and beat the bots to enter the cave. Get now across the water, grab the buffpants and spin in the middle of the 3 switches to activate them. Get up the platforms, use the button, get through the flowers (careful, if you get too close or stand too long, they will eat you) and find another switch. Beat the robots and the small boss. In the next area, use the buttons to destroy the outhouses and beat the enemies. Another switch, get up the platforms and use the button to enter the cave. In the next section, use the Sandy coin to destroy the flowers and get past them, climb up on the left ledge and destroy the spawn machine. Activate the button here and continue across the platforms towards the boss battle.

He is rather straight forward but can be tough if you don't know on how to beat him. Evade his spin attacks and as soon as he is done, get close. He will try to smash you and you need to evade all 3 attacks without getting hit. After that he will expose his vulnerable spot on the buttocks. Hit him there 3 times and he will be defeated, rewarding you Sandy's tea glass and an achievement:

Tea at the Treedome

Find Sandy's Iced Tea Glass.

Tea at the Treedome
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Patrick.

Level 3 - Pretending to Fight with Patrick

The whole level is a boss battle and after each chapter, you will have one boss battle like this. Wait for the box to drop down (evade Patrick's attacks), pick up the power coin and hit Patrick's belt when he is not attacking. After that attack his butt and he will go to the next stage (he will each time cover the area with something new). Do this 3 times to beat him and you will get a kelp hot dog which will unlock the following:

No Weenies Allowed

Find the Hot Dog.

No Weenies Allowed
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Mr. Krabs.

Level 4 - Becoming A Fry Cook

Jump on the small island ahead, activate the pressure plate and shoot the now open generator. Get on the bus, dodge the obstacles and do now the same on the next island. After the next bus ride, defeat all the enemies here, get the buff pants, smash the obstacles and activate the next set of generators. Get across the now free gap, get through the cave and use the sponge ability to water the sponge. Up there, we activate more generators with the help of the sponges and buff pants and get across another gap. Destroy the robots here, use the next switch afterwards and get QUICKLY across the walkway! Time your shots to hit the right generators and get to the last bus to grab the golden spatula and an achievement:

Neptune's Spatula

Find the Golden Spatula.

Neptune's Spatula
Offline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Squidward.

Level 5 - Santa, Santa

Head to the bomb bot in the middle, hit him once and roll with him to the ice on the right to blow it up and continue through the now open path. Get on the trampoline, shoot the bomb mid-air stuck in the ice, get across the ice and grab the buff pants. Smash the ice in your way, get on the trampoline to shoot another frozen bot bomb, get across and roll a bomb at the bottom of the structure. Use the switch to get across, beat the bots, and get through the door and past the chewing gums. Make your way past the lasers (as soon as you touch them you will trigger an alarm which will spawn enemies you need to defeat to continue) and past another chewing gum part. Use the switch and get across the chewing gum in the time limit to start a boss fight.

Evade his shots and get close so he smashes the floor 2 times. After the 2nd hit, he will open his mouth and you need to attack him there. Retreat a little since he will use a smash that will smash you away. Rinse and repeat until he is defeated and he will drop the clarinet which awards you:

Christmas Who?

Find the Toy Clarinet.

Christmas Who?
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Patrick.

Level 6 - Meeting Mermaidman and Barnacle Boy

Beat the robots at the beginning area, get across the gap, beat more robots, shoot the target to reach the last bots and get through the door. Get across the platform (the bronze coloured ones will fall down if you stand on them too long) and use the button to get through the next door. More robots to beat and buttons to press. After the cave, use the switch, get across the gap and do the same until you reach the end (careful, the electric charges should be evaded at all costs). You are now in a dark area with various flowers scattered on the ground. Destroy them with the Sandy coin and you will find several buttons to press. Activate them, but don´t leave yet! Instead you can grind here the 250 killed robots and you should unlock the following in no time:

Robotic Rage

Defeat 250 enemies with SpongeBob.

Robotic Rage
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCumulative +

Head now across the platforms, use the buffpants to destroy the stone tikis. Here you will most likely unlock the achievement for 150 destroyed stone tikis. If not, you will get it soon, but if you want to grind it here by dying (however, only die when you destroyed the tikis on the last platform as well!):

Livin' Like Larry

Break 150 Squidward Stone Tikis.

Livin' Like Larry
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCumulative +

Defeat the robots and get across the gaps with the chewing gum. Use the 3 spins on the left, get through the cave and destroy the enemies in your way. Use the switches to move the platforms and you will come to the next area. Here you have to activate the switch and make your way QUICKLY across. Do this a second time; this time grab the rainbow coin. Defeat now the robots at the end to get the aquaphone which will unlock the following:

Mermaidman & Barnacleboy II

Find the Aquaphone.

Mermaidman & Barnacleboy II
Offline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Squidward.

Level 7 - Squidward's First Krabby Patty

Another boss fight, but this is a rather tough one. Evade his attacks as much as you can and make your way to the button. He will throw a box at you which contains the power buffpants. Use now the chewing gum and attack him. Evade his spin attack and rinse repeat until he is defeated. This will reward you the Krabby patty and an achievement:

Just One Bite

Find the Krabby Patty.

Just One Bite
Offline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Squidward.

Level 8 - 24hrs at the Krusty Crab

Beat the bots, use switch and get across the chewing gum in time (jump off the last one). Get across the gaps, beat the bots and roll the bomb to the tower. Use switch, get across in time, lower the belly fluids and get the power buff. Get now all the way up, use the button, shatter the teeth and get through the gap. Past the flowers, shoot through the bars of the gate, another switch and button to open the door. Use the gum to cross the gaps, and get through the tunnel and continue through the area with the platforms, electricity and fists. Use the button for the gate, make the sponges grow. Get across the ledges with help of the eel, climb up the ledge, roll the bomb to the left through the last hole. Shoot the now free deflectors and roll the bomb towards the building at the end. Push the button, get up the platform, defeat a certain number of bots and get the 24hrs sign for an achievement:

Graveyard Shift

Find the Open 24 Hours sign.

Graveyard Shift
Offline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Sandy.

Level 9 - Kara-tay with Sandy

Beat the bots, get through the tunnels and push the button. Activate the switch, navigate the bomb bot to the tower, use the button and beat more bots to open the switch. Get across the gaps and use the switches to raise paths for the bomb. Make sure to leave the bomb NOT on the paths since they will lower in time! Shoot the target, get across the boxes and past the jellyfish. Beat the bots Sandy sends at you, get across the platforms, through the tunnels and beat more robots. In this section I got my achievement for destroying 1000 Plankton tikis:

Born to Be Wild

Break 1000 Plankton Tikis.

Born to Be Wild
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCumulative +

Head for the red dojo for the boss battle. Evade his spin attacks until he starts to shoot (careful, he will suck you towards him!) and evade these too. Now he will expose his head which is his weak point. Do this a few more times and you will get the karate gloves which will unlock the following:

Karate Choppers

Find the Karate Gloves.

Karate Choppers
Offline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

House

Talk to Patrick.

Level 10 - This is not your formula Plankton

Follow the path to the right, beat the robots he sends at you and evade his attacks. When his arm is down, attack it and use the buffpants enhanced gum attack on the visible sign. You are now inside of Plankton and will have to defeat the small generators at the corners. After they are down, destroy the heart in the middle. Rinse and repeat until all generators are down and Plankton is defeated. I unlocked my achievement for 10.000 coins collected in this level:

Money Talks

Collect 10,000 Happiness Nuggets.

Money Talks
4 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCumulative +

For now, we will keep the coins! After Plankton is defeated we will unlock the following:

HAPPY SQUARED!

Complete the game.

HAPPY SQUARED!
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyMain Storyline

Now watch the credits without skipping them! This will unlock the following:

Patchy's Roll Call

Watch all of the end credits.

Patchy's Roll Call
1 guideOffline Game ModeSingle PlayerCooperativeHost Only

Now it is time for the collectibles, tiki challenges and missed achievements.

2nd Story Playthrough

House

We walk up on the 2nd floor and unlock the bathroom to your left. Here you find various extra lives and you should unlock the remaining ones in the treasure chests for the following achievement:

A Life in a Day

Collect 99 Lives.

A Life in a Day
3 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCumulative +

Now get downstairs and head to the dresser. Buy now each costume for each character and after you bought the last, you should unlock the following:

Costume Party!

Unlock all of the available costumes.

Costume Party!
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCumulative +

Dashboard now and you will have the lost coins back! We will need these for another achievement around 16.000 coins, so make sure to keep collecting them. You can now use the teleport boxes in each level which make it a little bit easier to finish the levels faster. However, i don´t recommend using them since you will miss a lot of coins that way.

In each level you will need now to find 2 more happiness items, 3 collectibles and 1 sleeping Patrick in order to finish the levels. Go to the middle of the room and look into the photo album. Choose the first level now.

Level 1

Go to the platforms with the buttons on them, jump right on the 2nd platform and activate the Tiki Challenge. Pass it to unlock the baby jellyfish and the following achievement:

Jellyfish Jam

Find the Baby Jellyfish.

Jellyfish Jam
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Go to the 4th platform and jump to the left on the pirate ship. Here you have Plankton tikis to your left and some boxes. Climb up the tikis and shoot at the target to open the cave near the first Tiki Challenge. Before you leave, smash all the items here to find the first sleeping Patrick (1/7, make sure to hit him once so he counts as found). Head back to the cave and get the first collectible here (1/3). Head now for the cave with the power buffpants and activate the button to free the first set of jellyfish without getting hit. Now drop down and defeat more enemies WITHOUT getting hit to unlock the following (if you get hit, you will need to restart from scratch!)

MuscleBob BuffPants

Defeat 30 enemies in a row while buff.

MuscleBob BuffPants
2 guidesOffline Game ModeSingle PlayerCooperativeHost Only
:

Jump up to the next ledge to find the next Tiki Challenge. Beat it to find the bubble wand and unlock an achievement:

Naughty Nautical Neighbors

Find the Bubble Wand.

Naughty Nautical Neighbors
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Free the 2nd set of jellyfish and instead of leaving the cave, jump up to the left on a ledge to find the next collectible (2/3). Exit the cave and before you slide down the jelly you can see a Tiki Challenge. Beat it to get the last collectible here (3/3) and finish the level as usual.

House

You should be able to open now the kitchen to your left and as soon as you get inside activate the hotdog to the left. This will trigger a small cutscene where Patrick eats multiple hotdogs and will unlock the following:

Weenie Hut

Feed Patrick a kelp hot dog.

Weenie Hut
1 guideOffline Game ModeSingle PlayerCooperativeHost Only

Level 2

Head to the cave with the 3-spin-lever, climb up to find the Tiki Challenge and beat it for the magic conch and the following achievement:

Club SpongeBob

Find the Magic Conch Shell.

Club SpongeBob
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

During this challenge, you can see the collectible in mid-air and now you should grab it (1/3). Get to the area with the outhouses, get up to the 2nd smashing hand and you will find the next collectible near a palm tree (2/3). Next area is the big flower field, destroy all flowers here and climb up the left ledge. You will find the next tiki and upon completion you will unlock the last collectible in this level (3/3). Get onto the 2nd green platform, turn around to shoot the target and smash the appearing box to find the next sleeping Patrick (2/7). Go across the green platforms to find the next Tiki Challenge which will award you the heart shaped acorn and the following achievement. Finish the level as normal now.

Valentine's Day

Find the Heart-Shaped Acorn.

Valentine's Day
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Level 3 (boss battle, no collectibles so skip it)

Level 4

After the 2nd busride you will find the tiki at the pier which will reward you the #1 hat and the following achievement:

One Krab's Trash

Find the #1 Soda Drinkin' Hat.

One Krab's Trash
Offline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Head up the ledge to the right and you should find the collectible behind the generator there (1/3). After the cave you will see some platforms in the water and one of them contains a tiki which will reward you the next collectible (2/3). After the first sponge you need to hit with water, head to the right and you should find a large box which will contain the next sleeping Patrick (3/7). In the area where you need to fight the bots, you will see near the pier to the left the last collectible here (3/3). Use the switch here and at the 3rd platform you will have a tiki which rewards you with Snellie's pet carrier and the following achievement. Now finish the level.

The Great Snail Race

Find Snellie's Pet Carrier.

The Great Snail Race
Offline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Level 5

At the start, roll the bomb to the structure to the left to find the first collectible (1/3). Head through the door on the right and you will come to your first Tiki Challenge. This will reward you Squidward's paints and the following achievement:

Squid Wood

Find Squidward's Paints.

Squid Wood
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Get to the room with the chewing gums and drop down to the right to find a Tiki Challenge which will reward you with the bellybutton lint earmuffs and an achievement:

Survival of the Idiots

Find the Bellybutton Lint Earmuffs.

Survival of the Idiots
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

After crossing the chewing gum platforms, turn left on the wooden platform and you can see the collectible on an ice platform (2/3). Get to the next wooden platform on the left to find a huge box which contains the sleeping Patrick here (4/7). Up on the next ledge to the left you will also find the last Tiki Challenge which will reward you the last collectible here (3/3). Finish the level now.

House

At this point, I had around 16.000 coins and here is what I did: I upgraded EVERYTHING in the house (take special note on Gary's food bowl and the bed!) and unlocked the achievement for it. You need to do all in one go since I've heard reports that this achievement is glitched. So to prevent that, we do it in one clean sweep! Dashboard to get the money back and spend your money now on health upgrades and everything you feel you want to have. The following achievement unlocks upon buying the last item:

Home Sweet Pineapple

Upgrade all of SpongeBob's furniture.

Home Sweet Pineapple
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCumulative +Buggy -

Level 6

Go to the moving platforms and you will find the first collectible to the very left of the first platform (1/3). Continue until you reach the large room with the first Tiki Challenge in it. This will unlock mermaidman's utility belt and unlock the following achievement:

Mermaidman & Barnacleboy IV

Find Mermaidman's Utility Belt.

Mermaidman & Barnacleboy IV
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Go up two sets of exploding platforms to find the next tiki which will give you a collectible upon completion (2/3). Upon reaching the top of this area, you will see an electric machine to your left with a huge box on top of it. Smash it to reveal the sleeping Patrick here (5/7). Go to the flowerfield and you will find the last collectible inbetween the flowers (3/3, most likely you grabbed it earlier!). Get past the chewing gum and head to the right on the last platform with the exploding tikis. Smash the stone tikis on the ledge to find the last Tiki Challenge which will reward you the mermaidman and barnacleboy ring box and the following achievement. Finish the level as usual (since you don't need any more money now, you can also quit out, your progress still counts!).

Mermaidman & Barnacleboy

Find Mermaidman & Barnacleboy's Ring Box.

Mermaidman & Barnacleboy
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Level 8

Right at the start head down the ramp to find the first Tiki Challenge which awards you Patrick's alarm clock and the following achievement:

Rise and Shine

Find Patrick's Alarm Clock.

Rise and Shine
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

After the water area and the flowers, you will find the next tiki which will reward you Mr. Krab's 1st dollar and the following achievement:

Wet Painters

Find Mr. Krabs' 1st Dollar.

Wet Painters
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Get to the area where you lower the water and use the chewing gum to get across to the other side. Head all the way to the right to find the first collectible in a secluded area (1/3). Stick to the left across the gum to find the box hiding the sleeping Patrick as well (6/7). As soon as your reach the area with the trampolines, head to the rightmost ledge to find a Tiki Challenge that rewards you the next collectible (2/3). After using a button to open the door, drop down to the left (in this area are the sponges) to find the collectible to the very left (3/3). Either finish or quit the level now.

Level 9

Upon raising the treadmills you can find the collectible in this area (1/3). After you moved across the floating boxes, you will find a Tiki Challenge which rewards you with a collectible upon completion (2/3). Since this is also the last battle Tiki Challenge, you will unlock the following achievement:

Last Sponge Standing

Survive all 7 Task Tiki Combat Challenges against the robot cretins.

Last Sponge Standing
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

After the jellyfish, you will find a Tiki Challenge which will reward you with the volcano hot sauce and the following achievement:

Nasty Patty

Find the Volcano Hot Sauce.

Nasty Patty
Offline Game ModeSingle PlayerCooperativeHost OnlyCollectable

As soon as you reach the big raft, you will need to hit all the targets with your balloon shots. You can hit them from the back as well, but you need to hit them all at least once! There is a total of four to hit and it might take some tries since robots will distract you and clipping errors might prevent you from shooting. This will make a huge box appear at the end of the left ledge which contains the last sleeping Patrick (7/7). This will unlock the following achievement:

Sleepy Time

Find Patrick sleeping in all levels.

Sleepy Time
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Head to the water fountains, the Tiki Challenge will be to the left and upon completion you will find the picnic basket and unlock two achievements:

Nature Pants

Find the Picnic Basket.

Nature Pants
2 guidesOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

SpongeBob HappyPants!

Find all of SpongeBob's Happiness Objects.

SpongeBob HappyPants!
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Now before entering the red dojo, head to the left to find the last collectible (3/3) and to unlock the following achievement. Either finish or quit the level now.

Artist Unknown

Unlock all concept art.

Artist Unknown
1 guideOffline Game ModeSingle PlayerCooperativeHost OnlyCollectable

Coop

This is the last part and will take the least time as well. Basically you can either plug in a 2nd controller and play yourself or ask a friend to help you (which is the less annoying alternative). You or your coop partner plays as Plankton (make sure that the profile getting the achievement is the 1st player) and has to do these things in order to unlock the remaining achievements:

1) Shoot happiness coins with the A button to transform them in ammo for Plankton's ray. Upon doing this with 100 coins, you will unlock the following:

Walking Small

Have a Co-op buddy, as Plankton, make 100 Happiness Nuggets sad.

Walking Small
2 guidesOffline Game ModeCooperativeHost OnlyCumulative +

2) Grab an enemy with Plankton's ray and shake him until he drops an ammo coin. It also counts if you just shake them until you don't have enough power to grab them. Upon doing this with 50 enemies, you will unlock the following:

Curse You!!!

Have a Co-op buddy, as Plankton, shake 50 enemies.

Curse You!!!
2 guidesOffline Game ModeCooperativeHost OnlyCumulative +

3) Defeat enemies with Plankton's shots. Mostly you will need between 2-4 shots per enemy, depending on his strength. After your 100th you will unlock the following:

I Will Destroy All of You!

Have a Co-op buddy, as Plankton, defeat 100 enemies.

I Will Destroy All of You!
2 guidesOffline Game ModeCooperativeHost OnlyCumulative +

Now here is what I did: I played the first level until the cave with the buffpants (on the way I grabbed/shook enemies, killed them and transformed coins I saw). After freeing the first set of jellys, you have an infinite spawn of weak enemies and therefore I rinse/repeated the shaking/killing/transforming tactic until I unlocked all of the achievements.

Congrats on your full 1000g on this game. If you feel there is any missing and/or incorrect information in this walkthrough, feel free to contact myself or post on the forum for this specific walkthrough. Thank you.

Find anything you think is wrong with this walkthrough? Help us fix it by posting in its Walkthrough Thread.
This walkthrough is the property of TrueAchievements.com. This walkthrough and any content included may not be reproduced without written permission. TrueAchievements.com and its users have no affiliation with any of this game's creators or copyright holders and any trademarks used herein belong to their respective owners.