Gadget Racers

Note: This game is also titled Choro Q Advance.

Start with the Dragon parts (Japanese version):
Start a game, rename it DRAGON, then change it back to your original name. You will start with the Dragon series (the best series) of car parts.
Information in this section was contributed by Deryck Chan.

Use horn:
Press Up during a race.
Information in this section was contributed by duncan.

Medals:
Accomplish the following tasks to earn a medal.
Information in this section was contributed by duncan.

Collect all parts.
Collect all bodies.
Collect all engines.
Complete all areas.

Demo mode:
Press B when "Press Start" appears at the title screen.
Information in this section was contributed by duncan.

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.
Information in this section was contributed by Zack Ritter.

Hint: Regain money:
If you are in urgent need of money, play a race that you can win repeatedly until you have enough money. You can get the same amount of money at the end of every attempt.
Information in this section was contributed by Deryck Chan.

Hint: Use the appropriate parts:
Inspect which kind of track are you going to play on before you start. Then choose the appropriate type of tires, floats, or propellers in order to get an easy win.
Information in this section was contributed by Deryck Chan.