The most popular Gamecube/Wii emulator is Dolphin, and so far, Cheat Engine has been the most popular RAM watch solution for Dolphin. Here's a nice tutorial by aldelaro on using Cheat Engine with ...

Prerequisite All of the works and programs are 64-bit. Cheat Engine 7.0+ gtutorial-x86_64.exe (This program is packed inside the Cheat Engine installer) ...