At the main menu, select the "Bonus Content" option. Then, enter one of the following
codes to activate the corresponding cheat function. If you entered the code correctly, you
will hear a sound.
- Shredder and Cyber Shredder alternate costume
Press Up, Down, Right, Up, Down, Right, Left, Up, Right, Down to unlock Shredder and the
Cyber Shredder alternate costume.