| Achievement | How to unlock
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| A + B | Finish a boss using a Super Attack.
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| Beware Lawbreakers! | Play as Casey Jones.
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| Biggest Fan! | Find all cameos in Story Mode.
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| Breaking Out! | Destroy 200 breakable objects.
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| Buffoons! | Put an end to Bebop and Rocksteady's run in Story Mode.
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| Button Masher | Win the mini-game in Coney Island.
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| Classic Couch Memories | Complete the Arcade Mode in Multiplayer.
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| Clean Up in Aisle 4 | Stop Chrome Dome before he can rebuild the old Technodrome in Story Mode.
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| Come On! | Got hit while performing a taunt.
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| Complete Cast! | See all of the different endings in Story Mode.
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| Complete Season | Complete the Story Mode.
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| Cowabunga It Is | Perform a 250-hits string.
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| Empire Strikes Out | Retreat the Triceraton empire in Story Mode.
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| Finally Getting Along! | Cheer up Raphael while playing as Casey Jones.
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| INEFFECTIVE! | Defeat the Rat King while using Splinter.
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| Kind Brother | Revive a teammate in multiplayer.
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| Like the Old Days! | Complete the Arcade Mode on the hardest difficulty.
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| Master of One Quarter | Complete the Arcade Mode without using a credit.
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| Mode 7 | Throw sixteen enemies toward the camera.
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| Most Fearsome Fighting Team! | Complete a Stage in any mode in multiplayer.
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| Multitasker | Complete all of the special requests in Story Mode.
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| No need for Mutagen! | Bring all characters to max Power Level in Story Mode.
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| Opening an Antique Store? | Find five different collectibles in Story Mode.
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| Piped Piper! | Trespass the royal grounds of NYC sewers and defeat the Rat King in Story Mode.
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| Pizza Time! | Eat twenty pizzas.
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| Return to Sender | Deflect ten projectiles.
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| Sharing is Caring! | Cheer up the same teammate three times in a single stage.
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| Special Report | Stop the rogue Channel six broadcast in Story Mode.
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| Teamwork | Perform ten Team Attacks in multiplayer.
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| Who Needs A Dock? | Defeat Super Shredder without being hit.
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