| Achievement | How to unlock
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| Bossy Bugs | Defeat all of the Legendary Bugsnax.
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| Candid Cryptid | Scan the Snaxsquatch.
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| Clothesline | Stun a Bugsnak with the Trip Shot attached to your Buggy Ball.
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| Combo Meal | Transform a Grumpus with Bunger, Fryder, and Sodie.
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| Dapper Capper | Collect ten hats.
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| Deep Impact | Complete the adventure at Broken Tooth.
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| Documentarian | Watch all of Lizbert's video diaries.
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| Double Trapper | Catch more than one Bugsnak in your Snak Trap at once.
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| Everybody Gets One | Catch your first Bugsnak.
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| Feeding Frenzy | Fully transform every Grumpus.
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| Gone Home | Find your way to Snaxburg.
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| Got to Catch Them All | Catch hundred unique species of Bugsnax.
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| Grab Bag | Empty one biome of all its Snakpods.
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| Halfway There | Catch fifty unique species of Bugsnax.
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| I'm Stuffed | Fully transform a Grumpus.
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| In The Arms of the Gramble | Donate max amount of Bugsnax to Gramble's ranch.
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| Know Thy Neighbor | Return every Grumpus to Snaxburg.
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| Launch Party | Stun a flying Bugsnak by launching another Bugsnak at it.
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| Live Laugh Hut | Fully furnish your hut.
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| Midnight Snak | Transform Gramble.
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| Perf Dirt | Steal Beffica's diary from her cave.
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| Quartermaster | Catch 25 unique species of Bugsnax.
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| Say Cheese! | Scan a Grumpus after saucing them with cheese.
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| Sidetracked | Complete all of the side quests.
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| Sundae Best | Transform a Grumpus with Scoopy, Banopper, and Cheery.
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| Survivor | All of the Grumpuses survive.
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| Talkin' Bout Bugsnax | Interview every Grumpus.
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| That Reminds Me of A Puzzle | Solve the secret of the lava cave or the secret of the dunes.
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| Vacation's End | Complete the main story of Bugsnax.
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| Wonderfalls | Check behind the waterfall for secrets.
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