Eat 20 pizzas.
Win the mini-game in Coney Island.
Deflect 10 projectiles.
Put an end to Bebop and Rocksteady's run in Story Mode.
Trespass the royal grounds of NYC sewers and defeat the Rat King in Story Mode.
Defeat the Rat King while using Splinter.
Got hit while performing a taunt.
Throw 16 enemies toward the camera.
Stop the rogue Channel 6 broadcast in Story Mode.
Finish a boss using a Super Attack.
Complete the Arcade Mode without using a credit.
Complete a Stage in any mode in multiplayer.
Perform 10 Team Attacks in multiplayer.
Revive a teammate in multiplayer.
Cheer up the same teammate 3 times in a single stage.
Find all cameos in Story Mode.
Complete all of the special requests in Story Mode.
Play as Casey Jones.
Destroy 200 breakable objects.
Perform a 250-hits string.
Defeat Super Shredder without being hit.
Find 5 different collectibles in Story Mode.
Bring all characters to max Power Level in Story Mode.
Cheer up Raphael while playing as Casey Jones.
Retreat the Triceraton empire in Story Mode.
Stop Chrome Dome before he can rebuild the old Technodrome in Story Mode.
Complete the Story Mode.
See all of the different endings in Story Mode.
Complete the Arcade Mode in Multiplayer.
Complete the Arcade Mode on the hardest difficulty.