Mario Kart 64 - Top Speed Modifier Action Replay Codes (USA)
This page contains the Action Replay codes that I have for Mario Kart 64 (USA), a game for the Nintendo 64. If you are playing on a physical N64 console then you will need to purchase a physical Action Replay device to use the codes you find on this page and website. From what I have read and seen both of these cheat devices have cross compatibility.
For those of you out there using an Emulator such as Project 64, you can typically add cheats by clicking on a tab at the top of your Emulator that will lead you to a section where you can add codes. Anyone who is using the Project 64 Emulator should check out my How to Setup Codes on Project 64 Guide for more information on how to get cheats working.
If you don't see the cheats you're looking for on this page I recommend you return to my Mario Kart 64 Action Replay Codes page and choose a different section.
Note: When you use a Mushroom, you are propelled to just beyond your maximum speed. So don't set it too high or using a Mushroom might freeze the game.
(Player 1) Max Speed Modifier
810F6BA4 ????
810F6BA6 ????
(Player 2) Max Speed Modifier
810F797C ????
810F797E ????
Replace the ???? and ???? above with the modifier you'd like to use from below - or make your own!
439B 0000 - Default for Time Trials
4391 0000 - Default for 50CC
43A0 0000 - Default for 150CC
This actually seems to effect all human players. When I did versus all 4 players could go fast, but when I did Grand Prix on the human player(s) could go fast.
Computer Top Speed Modifier Codes
(Player 3/Comp 2) Top Speed
810F8754 ????
810F8756 ????
(Player 4/Comp 3) Top Speed
810F952C ????
810F952E ????
(Computer 4) Top Speed
810FA304 ????
810FA306 ????
(Computer 5) Top Speed
810FB0DC ????
810FB0DE ????
(Computer 6) Top Speed
810FBEB4 ????
810FBEB6 ????
(Computer 7) Top Speed
810FCC8C ????
810FCC8E ????
Replace the ???? and ???? with the value you want to use from the list below. Alternatively, you will want to make your own using the information provided. Increase the value to go faster, decrease to go slower.
43CD 0000 - Approx. 110 KM/h (any higher and your brakes don't work good)
4001 0000 - Too slow to notice
4303 0000 - Putt putt