Hover Sled

-Get a GREAT ranking on every mission

N.America level in Joyridin'

-Collect at least 8 tokens in the different joyridin' levels to unlock the N.America level.

Bonus Russia levels

-collect all three tokens in the russia level in joyridin'

Bonus Vietnam levels

-Collect all 3 tokens in the Vietnam level in joyridin'

Infinite Countermeasures (the game even tells you that it exists once you collect EVERY token)

-Pause the game and press: Y,Y,Y,X,X,Z,Z.