Unlock Crazy Difficulty for Crazy Circuit Mode
Win all of the rallies in Crazy Circuit mode to unlock the Crazy difficulty.
Unlock Dick Dastardly and Muttley's bio in the Gallery section
To unlock Dick Dastardly & Muttley's bio in the Gallery section, you must win all the rallies in Crazy Circuit on Crazy difficulty.
Unlock the Mean Machine in the Gallery section
To unlock the Mean Machine in the Gallery section, you must get a score of 10 or higher on the Trap Challenge mode.