| Unlockable: | How to Unlock: |
| A Life in a Day (50 GP) | Collect 99 Lives. |
| Artist Unknown (25 GP) | Unlock all concept art. |
| Born to Be Wild (20 GP) | Break 1000 Plankton Tikis. |
| Christmas Who? (10 GP) | Find the Toy Clarinet. |
| Club SpongeBob (10 GP) | Find the Magic Conch Shell. |
| Costume Party! (25 GP) | Unlock all of the available costumes. |
| Curse You!!! (50 GP) | Have a Co-op buddy, as Plankton, shake 50 enemies. |
| Graveyard Shift (10 GP) | Find the Open 24 Hours sign. |
| HAPPY SQUARED! (100 GP) | Complete the game. |
| Home Sweet Pineapple (30 GP) | Upgrade all of SpongeBob's furniture. |
| I Will Destroy All of You! (50 GP) | Have a Co-op buddy, as Plankton, defeat 100 enemies. |
| Jellyfish Jam (10 GP) | Find the Baby Jellyfish. |
| Jellyfishing (10 GP) | Find SpongeBob's Jellyfishing Net. |
| Just One Bite (10 GP) | Find the Krabby Patty. |
| Karate Choppers (10 GP) | Find the Karate Gloves. |
| Last Sponge Standing (30 GP) | Survive all 7 Task Tiki Combat Challenges against the robot cretins. |
| Livin' Like Larry (25 GP) | Break 150 Squidward Stone Tikis. |
| Mermaidman & Barnacleboy (10 GP) | Find Mermaidman & Barnacleboy's Ring Box. |
| Mermaidman & Barnacleboy II (10 GP) | Find the Aquaphone. |
| Mermaidman & Barnacleboy IV (10 GP) | Find Mermaidman's Utility Belt. |
| Money Talks (30 GP) | Collect 10,000 Happiness Nuggets. |
| MuscleBob BuffPants (50 GP) | Defeat 30 enemies in a row while buff. |
| Nasty Patty (10 GP) | Find the Volcano Hot Sauce. |
| Nature Pants (10 GP) | Find the Picnic Basket. |
| Naughty Nautical Neighbors (10 GP) | Find the Bubble Wand. |
| Neptune's Spatula (10 GP) | Find the Golden Spatula. |
| No Weenies Allowed (10 GP) | Find the Hot Dog. |
| One Krab's Trash (10 GP) | Find the #1 Soda Drinkin' Hat. |
| Rise and Shine (10 GP) | Find Patrick's Alarm Clock. |
| Robotic Rage (25 GP) | Defeat 250 enemies with SpongeBob. |
| Sleepy Time (50 GP) | Find Patrick sleeping in all levels. |
| SpongeBob HappyPants! (100 GP) | Find all of SpongeBob's Happiness Objects. |
| Squid Wood (10 GP) | Find Squidward's Paints. |
| Survival of the Idiots (10 GP) | Find the Bellybutton Lint Earmuffs. |
| Tea at the Treedome (10 GP) | Find Sandy's Iced Tea Glass. |
| The Great Snail Race (10 GP) | Find Snellie's Pet Carrier. |
| Too Good to be True (50 GP) | Complete any level without dying, without invincibility. |
| Valentine's Day (10 GP) | Find the Heart-Shaped Acorn. |
| Walking Small (30 GP) | Have a Co-op buddy, as Plankton, make 100 Happiness Nuggets sad. |
| Weenie Hut (5 GP) | Feed Patrick a kelp hot dog. |
| Wet Painters (10 GP) | Find Mr. Krabs' 1st Dollar. |
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SpongeBob's Truth Or Square Items
