Mario Tennis Action Replay Codes (USA)
This page contains the Action Replay codes that I have for Mario Tennis (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 Tennis Guides and Walkthroughs page and choose a different section.
All Characters Available: 810653C8 FFFF
All Courts Available: 810653CC FFFF
Ball Bounces Forever: 8115B173 0000
Bounce Height: 8115B104 ????
In Tournament Mode You Will Always Play On Composition Court: 810FF924 A267
Infinite Bounce: 8015B16B 0000
If you leave the ball alone it will eventually bounce out of bounds and give you points
High Nets: 8006524B 0008
Raises the nets up
Hit Ball Backwards On Serve (Press A Twice): 8015B0ED 00FF
Max Rings In Ring Challenge: 8106525C FFFF
Singles: 8006524F 0000
Doubles: 8006524F 0001
Always Have Nice Serve
Hold R when Opponent is serving or they'll always get Nice too
80153533 0001
D0066985 0010
80153533 0000
Get A Point Each Time Ball Touches Ground
Hold R when your opponent hits the ball and it's about to touch the ground otherwise they will get a point too
8015B16B 0000
D0066985 0010
8015B16B 0001
Backspin Amount
8115B11C ????
8115B12C ????
Ball Coords
8115B0E6 ????
8115B0EA ????
8115B0EE ????
Ball Size Modifier
8115B1A4 3F8C
8115B1A8 3F8C
8115B1AC 3F8C
Spin Speeds (L, U, R)
8115B114 ????
8115B124 ????
8115B134 ????