Mario Tennis Gameshark Codes (USA)
This page contains the Gameshark codes that I have for Mario Tennis, a game for the Nintendo 64. If you are playing on a physical N64 console then you will need to purchase a physical Gameshark or Xploder 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.
Master Code
F1300290 3C01
F1300292 A005
F1300298 03E0
F130029A 0008
F130029C AC20
F130029E 86A0
Activator 1 P1: D0066984 00??
Activator 2 P1: D0066985 00??
Dual Activator P1: D1066984 ????
Score Modifier P1: 8015344A 00??
Replace ?? with 00 for Zero; 01 for 15; 02 for 30 and 03 for 40
Score Modifier P2: 8015344B 00??
Replace ?? with 00 for Zero; 01 for 15; 02 for 30 and 03 for 40
Games Won Modifier P1: 8015344D 00??
Games Won Modifier P2: 8015344E 00??
Sets Won Modifier P1: 8015344F 00??
Sets Won Modifier P2: 80153450 00??
Aces Modifier P1: 81153454 00??
Aces Modifier P2: 81153456 00??
Double Faults Modifier P1: 8115345C 00??
Double Faults Modifier P2: 8115345E 00??
Return Winners Modifier P1: 81153464 00??
Return Winners Modifier P2: 81153466 00??
Smash Winners Modifier P1: 8115346C 00??
Smash Winners Modifier P2: 8115346E 00??
All Characters Have 'Star' Option: 810653CA FFFF
Have All Tennis Courts: 810653CC FFFF
Infinite Bounces Allowed Before You Hit The Ball: 8015B16B 0000
Have D.K. Jr.: 800653C8 0001
Have Shy Guy: 800653C8 0002
Have D.K. Jr. & Shy Guy: 800653C8 0003
Start Set With Score Modifier P1
D015344A 0000
8015344A 00??
Start Set With Score Modifier P2
D015344B 0000
8015344B 00??
Hold R For 'Nice' Serve
D0066985 0010
80153533 0001
All Tournaments Cleared (GS 3.0 Or Higher Needed!)
50000802 0000
81065278 EEEE