| Achievement | How to unlock
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| A day in the life of a bun | Complete the Cinnamon Fun! quest.
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| A good idea at the time... | Choose Nightmare Princess to rule.
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| A penny burned | Buy something from Choose Goose.
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| Ambitreacherous | Beat the game with 3 thumps, without upgraded sword, shield, or armor.
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| Bad timing | Beat Starchy's Graveyard Fun Run.
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| Be more | Find everything in the game.
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| Blade of grass | Complete sword training.
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| Burning low | Kill a Lub Glub using Flambo.
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| Dungeon train | Complete the Dream Temple.
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| Food chain | Buy any trail mix.
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| From bad to worse | Complete the Terrible People quest.
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| Gotcha! | Store a Convict Fairy in a baggy.
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| Henchman | Stun 5 enemies with a single Bananarang.
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| It was a dream all along! | Choose Slumber Princess to rule.
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| It was a song all along! | Choose Lullaby Princess to rule.
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| Jake suit | Kill an enemy after both Finn and Jake have attacked it.
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| Level 99 | Chop down 999 bushes.
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| Love games | Complete the Love Note quest.
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| Marceline's closet | Lie to Marceline.
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| Ocean of fear | Complete the Fear Temple.
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| Play date | Complete the Dungeon Drama quest.
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| Princess Day | Complete the tutorial.
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| Rattleballs | Find a gum globe.
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| Red starved | Find a thump shard.
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| Sad face | Break the pot breaking record.
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| The Enchiridion! | Complete the Trading Game quest.
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| The party's over | Party in the Rave Cave for 11 minutes and 12 seconds.
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| The pods | Find all five baggies.
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| The real you | Find every Gunter cave.
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| The red throne | Find all thump shards / spare thumps.
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| The Stanley Grayble | Talk to Stanley five times.
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| The vault | Complete the Door Repair quest.
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| Wake Up | Complete the Song Temple.
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| Why did you do that!? | Use Grabby Hand on a Pie Fairy.
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| Wizards only, fools | Receive every curse.
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