Mario Kart Super Circuit Cheats (GameBoy Advance)

At the character select screen, if you press L, the character will shoot shells. If you
press R, he will jump. If you press SELECT, he will honk the horn.

Want to race in the Special Cup tracks? Simply get the gold in all four cups in either 50,
100, or 150 racing. Once you earn the gold trophy in all four cups in a class, the Special
Circuit for that class is enabled.

To see the new title screen (which just features an orange background instead of blue),
complete all the circuits in 50cc, 100cc, and 150cc.

Once you have unlocked the SNES tracks in 150cc you will then be able to play through them
in the Time Trail mode.

Enable the SNES Mario Kart Tracks  
Want to double the number of
tracks available? Once you earn the Special Circuit in any class, beat that and get the
gold trophy. Now enter any class (50, 100, 150) that you have earned gold trophies in ALL
the cups (Mushroom, Flower, Star, Lightning, and Special). Choose any cup you wish to play
in. During the four races in the cup, collect a grand total of 100 coins. During the
awards ceremony, if you have collected 100 coins in that cup's races, you will be awarded
with Extra Tracks.

  To race these Extra Tracks, return to the same class (50-150) and cup. On the Cup
selection screen, press [L] or [R] to switch to the classic Super Mario Kart tracks
instead of the standard ones. Every cup has 4 extra tracks available, and to enable the
tracks for any mode and cup, you must earn it in the same mode and cup.

  In other words, if you get the Special Tracks for the 50cc Mushroom Cup, they are only
available in 50cc Mushroom. To get them in 100cc Mushroom, you need to get the gold in all
the 100cc Cups and earn 100 coins in the 100cc Mushroom Cup.

  To enable these extra tracks in Time Trial, you must earn them in the 150cc modes.

Brake while accelerating immediately as you hit a bananna, or anything else that will send
your kart into a slide.

A common move in all Mario Kart games is the ability to boost right from the starting
line. This is done the same way in the GBA version of the game. To do it, you need to
press the accelerator as soon as the green light comes on. You need perfect timing to do
it, but if you do you'll boost ahead of the other racers right at the start.