Here is the full list of all 50 SpongeBob's Surf & Skate Roadtrip achievements worth 1,000 gamerscore.
Unlock all twelve tracks in 1 player
Unlock all challenges in 1 player
Earn 1/3 of all stars in 1 player
Earn 2/3 of all stars in 1 player
Earn all stars in 1 player
Complete any race as SpongeBob
Complete any race as Patrick
Three Star rating for any Against the Clock
Three Star Rating for any Superscore! Challenge
Three Star Rating for any Danger Dash Challenge
Three Star Rating for any Red Gate Challenge
Three Star Rating for any Green Gate Tour
Three Star Rating for any Accelerator! Challenge
Three Star Rating for any MAXIMUM Awesome Challenge
Smash 75 pineapples in one playthrough of Pineapple Farm
Smash 25 XX barrels in one playthrough of Floater's Peak
Complete a Danger Dash Challenge without hitting a single trap
ROCKET MASTER: Finish a Rocket race without losing speed
AWESOME MASTER: Max out the awesome meter during an Awesome race
Reach XP rank 5
Reach XP rank 10
Reach XP rank 15
Reach XP rank 25
Reach XP rank 35
Reach XP rank 45
Reach XP rank 55
Get a 3-star rating playing Danger Dash on O'Buoy Bay with The Leviathan
Get a 3-star rating playing Green Gate Tour on Seaweed Alley with The Seaweed
Get a 3-star rating playing Against the Clock on O'Buoy Bay with The Big Wave
Get a 3-star rating playing Green Gate Tour on Sand Castle with the Royal Tapa
Get a 3-star rating playing Superscore on Pineapple Farm with the Flower Power
Get a 3-star rating playing Danger Dash on Clam Mountain with the Pink Clam
Get a 3-star rating playing Red Gate Challenge on Cephalapod Alley with The Shivering Timber
Get a 3-star rating playing Red Gate Challenge on Rudder Reef with The Sharkbite
Complete a track without smashing a single obstacle
Score at least a Two Star Rating in a one player Quick Play match
Collect 4 refuel pickups in one Accelerator! Challenge
Get your photo taken in front of a ferris wheel
Get your photo taken in front of a wrecked pirate ship
Get your photo taken beside some fish folk
Complete 5 grind rails without falling over on a single track
Maintain awesome boost for 45 seconds uninterrupted
Ride over 10 seconds of slow surface at boost speed in one track
Spend 15 seconds in the air total in one track
Turn 360 degrees round the walls of a tunnel
Come first in a multiplayer Quick Play match
Survive a 'swap your controls' multiplayer attack without crashing
Survive a 'crazy handling' multiplayer attack without crashing
Make another player crash by using a 'swap their controls' attack
Make another player crash by using a 'crazy handling' attack