| Name | Description | Gamerscore |
| Jellyfish Jam | Defeat Jellyfish King | 10 |
| Spatula Seeker | Collect 10 Golden Spatulas | 10 |
| Time For Tutorial | Collect everything in SpongeBob's House | 10 |
| Squirrel Smasher | Defeat 100 robots as Sandy | 15 |
| Star Smasher | Defeat 100 robots as Patrick | 15 |
| Sponge Smasher | Defeat 100 robots as SpongeBob | 15 |
| Life's as extreme as you wanna make it! | Clear all the Ski slopes in Sand Mountain | 30 |
| Hello, Bikini Bottom | Find all the Golden Spatulas in Bikini Bottom | 15 |
| Sock Getter | Find 15 of Patrick's Socks | 10 |
| Surf's Up! | Finish the main missions of Goo Lagoon | 20 |
| Jellyfishing | Complete Squidward's Mission in Jellyfish Fields | 10 |
| Uptown and Downtown | Complete Mrs Puff's Mission in Downtown Bikini Bottom. | 10 |
| Hit Rock Bottom | Finish the main missions of Rock Bottom. | 20 |
| Keep it Rolling | Complete the Rolling Ball Puzzle in Mermalair. | 20 |
| Kelp Forest of Fear | Find all the Lost Campers in Kelp Forest. | 30 |
| Ship Shape | Reclaim the Flying Dutchman's ship in the Flying Dutchman's Graveyard. | 15 |
| Sleepy Time | Find all Golden Spatulas in the SpongeBob's Dream level. | 15 |
| Robot encyclopedia | Destroy at least one type of every robot in the game while playing the campaign. Bosses don't count. | 30 |
| Shrimp Catcher | Defeat Prawn in the Mermalair. | 15 |
| Shanghaied | Defeat the Flying Dutchman. | 15 |
| The Small Does Not Rule | Defeat Robo-Plankton and neutralize SpongeBot SteelPants' Brain. | 30 |
| Secret Achievement | Continue playing to unlock this achievement. | 20 |
| Super Spatula Seeker | Get 25 Golden Spatulas. | 20 |
| Ultra Spatula Seeker | Get 50 Golden Spatulas. | 30 |
| Mega Spatula Seeker | Get 75 Golden Spatulas. | 50 |
| Super Ultra Mega Spatula Seeker | Get all 100 Golden Spatulas. | 100 |
| Sock Concert | Find half (40) of Patrick's Socks. | 20 |
| Sock Opera | Find all (80) of Patrick's Socks. | 50 |
| Sweet Victory | Defeat Robo-Sandy in the Poseidome. | 20 |
| Toxic Terror | Defeat Robo-Patrick in the Industrial Park. | 30 |
| SpongeBob vs SpongeBob! | Defeat SpongeBot SteelPants in the Chum Bucket Lab. | 100 |
| Secret Achievement | Continue playing to unlock this achievement. | 200 |
Are you ready, kids? The cult classic is back, faithfully remade in spongetastic splendor! Play as SpongeBob, Patrick and Sandy and show the evil Plankton that crime pays even less than Mr. Krabs. Want to save Bikini Bottom from lots of rampant robots? Of course you do! Want to underpants bungee jump? Why wouldn't you! Want to join forces in a brand new multiplayer mode? The battle is on!
SpongeBob SquarePants: Battle for Bikini Bottom - Rehydrated is developed by Purple Lamp Studios and published by THQ Nordic.