| Achievement | How to unlock
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| Bashful | Strike three enemies with one charge of the Drill Driver.
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| Beckoning Buddy | Keep the Beckoning Collar creature active for most of a boss fight.
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| Below Zero | Finish the game with -1% Collection or less.
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| Big Spender | Spend a combined 50,000 Bones in shops.
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| Bone Keeper | Complete the game without ever losing your Bones.
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| Bone Pincher | Finish the game without spending any Bones in shops.
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| Bonestone Tycoon | Convert over 20,000 in the Bone Sinterer in one go.
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| Boomerang Blade | Kill two foes with a single Gyro Dagger, changing its direction with each strike.
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| Bounding Bonanza | Kill an enemy with a Bounding Bomb explosion, after both orbs bounce three times.
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| Buster Bounce | Defeat three enemies in a row with only double bank shots using the Battery Buster.
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| Combo Conductor | While in combat, maintain max combo with the Chain Capacitor Trinket for ten seconds.
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| Drag Race | Ride the Iron Steed across six unique screens without doubling back.
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| Feat Accompli | Earn all other Feats.
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| First Purchase | Buy your first item.
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| Fishin' Reactor | Acquire all trophies on the Fish Board.
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| Fogburst | Eliminate six enemies using one continuous spray of the Fog Thrower.
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| Four-Point Hatchet | Hit four enemies, one with each spark of a single Volt Hatchet.
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| Fully Equipped | Unlock all Weapons, Trinkets, Cloaks, and Upgrades.
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| Hammerama | Defeat a boss using only fully charged attacks from the Blaststrike Maul.
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| Hardifier | Finish the game with three active Hard Modifiers.
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| Haunting Reach | Hit a foe from 25 tiles away using the Gnawing Ghosts.
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| Hollow Victory | Reach the conclusion of the game.
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| Hollowin' Again! | Finish the game in New Game Plus.
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| Joule Junkie | Kill a boss while at 1 HP, using only Sidearms and the Joule Syringe Trinket.
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| Light 'em Up | Avoid a certain fate in the darkness by using the Dynamo Lantern.
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| Lopsided | Raise one stat to 10 while keeping all others at 3 or below.
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| Masochist | Defeat a boss while wearing exactly three Beastium Trinkets.
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| Minigame Master | Master all Racing, Ring Dive, and Wrecker challenges.
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| Mist Glide | Use the Mist Jar to phase through three enemies in one use.
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| Off the Grid | Finish the game without ever entering the Underlab.
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| Opossum Impressem | Show Lena that you can clear ten tiles without touching the ground.
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| Pawned Off | Sell the maximum number of items at Pawnty's Exchange.
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| Pendulum Master | Parry ten attacks without getting hit using the Dodging Pendulum Trinket.
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| Perfect Guard | Parry fifteen consecutive attacks with the Guardian Casket.
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| Pitfall Parasol | Knock multiple enemies into a pit using a single Deflector Parasol.
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| Plasma Survivor | Fill your reserve tank with the Plasma Jug Trinket while at 1 HP.
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| Renegade Roundup | Defeat Armand, Maxi, Willis, the Dugin, and Evra.
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| Shock Tactician | Defeat a boss using a spark from the Shock Flint Trinket.
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| Skippin' Stone | Kill an enemy across eight tiles of water using the Hollower's Rocks.
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| Sniper Dagger | Kill a boss with Whisper and Vesper thrown from across the screen.
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| Sparks of Genius | Restore half of the Spark Generators.
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| Speed Runner | Complete the game in under four hours.
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| Steed Hopper | Using the Iron Steed, hop on three enemies' heads without touching the ground.
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| Thorne Beater | Defeat Thorne for the first time.
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| Tip Tapper | Kill ten enemies in a row using Nightstar's Dread Mace upgrade, hitting only with the tip.
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| Trash Juggler | Knock the kids' can below the bottom of the bridge.
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| Traumatized | Dance with Poppit.
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| Untouchable | Defeat a Spark Generator boss without taking damage.
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| Weirdifier | Finish the game with three active Weird Modifiers.
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| Wormhole | Kill an enemy after warping from offscreen with the Recall Disc.
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