F-Zero X

At the ship selection screen:

Hold L + R + Z + C-Up + C-Down + C-Left + C-Right

You can examine whatever car you got by using the C-buttons to check out all your cool stuff on it.

On the car selection screen highlight a car and then press C-left (novice), C-right (expert), C-Up (master) or C-down (standard) to see an image of the trophies you have earnt for that difficulty.

To stop the vehicle rotating, in the colour and acceleration/speed change menu, simply press all 4 ''c'' buttons at once.

At the title screen, press start to get the mode select, and enter:

L-Shoulder, Z, R Shoulder, Up-C, Down-C, Left-C, Right-C, Start.

You should here a sound, not choose GP Race and a new difficulty will open up.

On the select course screen, a new set of random tracks called the X Cup are opened, and on the select machine scree, you now have access to every vehicle in the game.

To unlock more rows of vehicles, you must obtain a number of X marks on the cups. You get an X mark for each difficulty you clear a cup on (If you clear a higher difficulty before clearing a lower one, you will receive an X for all difficulties up to the one you cleared).