Teenage Mutant Ninja Turtles Easter Egg - Pumpkin Head

Before entering the game, change your computers date to Halloween(October 31st). Then, enter a new single player game in story mode and choose a character to play as(Leo, Ralph, Mike, or Don). Start the game and your characters head will now be a giant Jack-O-Lantern! This same egg applies to setting your computers date to Christmas day(December 25th), except instead of a jack-o-lantern head, your character wears a santa's hat!