GT Advance 3: Pro Concept Racing (GBA)

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All cars

At the title screen, hold L + B and press Left.

All tracks

At the title screen, hold L + B and press Right.

All tune ups

At the title screen, hold L + B and press Up.

Expert mode

Win a gold medal on all races in every class in normal .

Extra modes

At the title screen, hold L + B and press Down.

Super Mario Circuit 1 (from Super Mario Kart)

Select the Hornet track in Quick race or time trial mode and enjoy driving!

Note: The Hornet Track is the exact layout as the Super Mario Circuit 1 track except that it is set in a different scenery.