This page contains Teenage Mutant Ninja Turtles 3: Mutant Nightmare Codes for Nintendo DS called "Cowabunga message" and has been posted or updated on Dec 14, 2010 by more of Mario. Let us know what you think of this Code by thumbs voting.
Press Up(2), Down(2), Left, Right, Left, Right, B, A at the title screen. The turtles yell "Cowabunga!".
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