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Return to the Lair and undergo training.
Find a way inside the TCRI Building.
Take Casey's advice to upgrade a Shell Kicker.
Fully upgrade Leo's Shell Kickers.
Fully upgrade Donnie's Shell Kickers.
Fully upgrade Raph's Shell Kickers.
Fully upgrade Mikey's Shell Kickers.
Find a Shuriken upgrade.
Find every Shuriken upgrade.
Find a Smoke Bomb upgrade.
Find every Smoke Bomb upgrade.
Find a Chi upgrade.
Find every Chi upgrade.
Find a Health upgrade.
Find every Health upgrade.
Perform 50 Shell Kickers successfully.
Perform 100 Shell Kickers successfully.
Mangle 100 Mousers.
Fell 100 Footbots.
Knock down 100 Kraang Droids.
Achieve 100% Completion.
Finish the game in under 4 hours.
Finish the game in under 2 hours 30 minutes.
Finish the game in under 1 hour.
Finish the game without upgrading any Shell Kickers.
Rescue a captured turtle.
Seek out wisdom from Splinter.
Beat Rahzar without taking damage.
Find Mikey's lost comic book.
