Challenge map 2:
To unlock Challenge map 2, at the main menu, hold L1 and press X(2), circle, X. A sound will play if entered correctly.
Don's big head goodie:
To unlock Don's big head goodie, at the main menu, hold L1 and press circle, triangle, X, square. A sound will play if entered correctly.
How to defeat the Shredder:
To defeat the real shredder, ignore the shredder clones and fight the
real shredder. The real shredder will just stand there while his clones
attack you. Use Don's team move on him which shock enemies nearby. He
will not be able to attack after you shock him. Then, change to Raphael
attack the shredder until he recovers. Repeat this strategy until he is
After reaching the level where you can use all four turtles at once, you
must start building a relationship with your brothers. To do this, take
turns using your brother throw with the different turtles. Successfully
executing a brother throw will build your relationship.
To get an "A" in working with your brothers, use the turtle's special
move while fighting and continue fighting until more enemies appear.
Switch turtles and use their special moves until all enemies have been