Here is the full list of all 32 SpongeBob SquarePants: Battle for Bikini Bottom - there are Rehydrated achievements worth 1,000 gamerscore.
Defeat Robo-Plankton and neutralize SpongeBot SteelPants' Brain.
Get all 100 Golden Spatulas.
Get 100% completion. All golden spatulas and all socks.
Defeat SpongeBot SteelPants in the Chum Bucket Lab.
Find all (80) of Patrick's Socks.
Defeat the Flying Dutchman.
Reclaim the Flying Dutchman's ship in the Flying Dutchman's Graveyard.
Find all the Lost Campers in Kelp Forest.
Defeat 100 robots as Patrick
Get 75 Golden Spatulas.
Finish the main missions of Rock Bottom.
Defeat 100 robots as Sandy
Defeat Prawn in the Mermalair.
Complete the Rolling Ball Puzzle in Mermalair.
Destroy at least one type of every robot in the game while playing the campaign. Bosses don't count.
Find half (40) of Patrick's Socks.
Find all Golden Spatulas in the SpongeBob's Dream level.
Get 50 Golden Spatulas.
Find all the Golden Spatulas in Bikini Bottom
Defeat Robo-Patrick in the Industrial Park.
Clear all the Ski slopes in Sand Mountain
Talk to Squidward 10 times as SpongeBob.
Defeat 100 robots as SpongeBob
Finish the main missions of Goo Lagoon
Collect everything in SpongeBob's House
Get 25 Golden Spatulas.
Defeat Robo-Sandy in the Poseidome.
Complete Mrs Puff's Mission in Downtown Bikini Bottom.
Find 15 of Patrick's Socks
Collect 10 Golden Spatulas
Complete Squidward's Mission in Jellyfish Fields
Defeat Jellyfish King