All bikes

Beat the hardcore difficulty in career mode

Big Head

At the main menu enter B,X,R,L,right. If done correctly it should say, "Your Head Expands."

Tiny Mode

At the main menu enter L,Z,left,right,B,B.If done correcly It should say, "Drink Me"

Tag Mode

At the main menu enter z,x,z,x. If done correctly, it should say, "Tag your It"

Bouncy Bike

At the main menu enter up,up,y,y,x,x.If done correctly, at the bottom left hand corner of the screen it should say, "Bouncy, Bouncy."

Moon Gravity

At the main menu enter left, right, up, down, b, b, b.If done correctly, at the bottom left hand corner it will say, "You Feel Lighter."

Unlimited Turbo

At the main menu enter down,down,down,l,r,z. If done correctly, at the bottom left hand corner, it will say, "The Need For Speed."