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