Gadget Racers Use horn: Press Up during a race. Medals: Accomplish the following tasks to earn a medal. Collect all parts. Collect all bodies. Collect all engines. Complete all areas. Demo mode: Press B when "Press Start" appears at the title screen. Hint: Quick start: When starting a race, make sure you have oil in your car to increase acceleration. When the pre-race countdown reaches the end of "1" press Gas to get a head start boost in the race.