In tournament mode pick a empty name slot then hold Z and enter RRTANGENT as a name while pressing L to enter each letter. Ignore that only 3 letters can be entered for initials. Now select end and press L and B. Pick the same player file and enter ABACUS as a name by pressing L to select each letter. Now select end and press L and A. Start a race on any tournament track and pause the game and press Up, Left, Down, Right OR left, down, right, up or left, right, down, up. All options will now appear on cheat menu. Note: Memory slot 4 must be free to use this code. You will have a game called BDG created there. This is also reported as putting in RRTANGENTABACUS instead of putting them in seperately
Same cheat Put another way:
First you will need a emty file. Enter the file and hold Z, then type in with L while holding Z
RRTANGENT, then go to END and press End while holding Z like before. Then get out of the file and go back in. And type in holding Z using L ABACUS go to END like before. Then when you press END with Z and L in the bottem right hand corner it will say OK. Get out of that file and play any race. When racing press pause and with the D Pad press left, down, right and then up, you will see a nather option saying game cheats. Go to it and you will have acces to invicibility and other cheats.