BR · GMT-3
erick@tmr:~$ ./cool_tools --run
COOL TOOLS
SMALL HACKS · BIG WINS
Small, single-purpose utilities I built because something annoyed me and nobody else had fixed it. They run entirely in your browser. No accounts, no uploads, no server.
TOOL ▸ 01 · GAME BOY COLOR
● LIVE
Mario Tennis Save Patcher
Mario Tennis for Game Boy Color locks four characters and four minigames behind an N64, the N64 cartridge and a Transfer Pak. This patcher writes the exact same bytes a real Transfer Pak session writes, verified on a real cartridge, so you can unlock them from your save file alone.
UNLOCKS
YOSHI
WARIO
WALUIGI
BOWSER
+ 4 minigames
16
bytes changed
0
uploads
100%
reversible
Open the patcher ▸
accepts a 32 KiB .sav (USA)
REQUESTS
Know some retro content locked behind hardware nobody owns anymore? Tell me. Reverse-engineering save formats is my kind of weekend.
