Mario Kart 64

Get the gold trophy in the Special Cup 150cc in Mario GP. You will see the credits roll. After that you will be able to access "Extra" mode in Mario GP, which allows you to play the courses as if they were mirrored.NOTE: You can't use "Extra" for Battle or Time Trails.

I have 2 cheats for you!

1: this can with any character: if you're racing, hold ''R'' by a turn. if the turn is left, push your yoystick for a second to the right. do this two times, and you got a short turbo! this works also by a right turn.
2. if you play VS with 2-4 players, AND you got a long way head to the other players, stop your kart in the final lap close by the finish, spin around 180 degrees, go backward and you hear 2 finishes for you. you see then 2 points in one race!

To get a boost at the start of the race and an early lead, do not hold the acceleration button before the race. Wait until after the last light flashes, then punch the gas. If you time it just right, you should get a boost that puts you into first place!

Enter time trial mode and complete a course, beating the time indicated below. Then, select "Retry" to race the course again. The phrase "Now Meet the Course Ghost" will appear. The course ghosts are automatically saved to the cartridge for future replay without beating the course time again.

To get these ghosts, you must beat the times listed below.

Luigi Raceway 1'52''00
Mario Raceway 1'30''00
Royal Raceway 2'40''00