Gamecube and Wii corruption are very similar due to the fact the Wii is essentially an upgraded Gamecube at its core.
At the moment, the best way to corrupt Gamecube/Wii is with RTC, through Dolphin-Vanguard.
Recommended setup: Vector Engine Startup vector suggestions: Limiter: One, Value: Two Limiter: Extended, Value: Extended Limiter: Giga, Value: NOP
Notable Vector Engine Combo for breaking game engine physics: Limiter: Dolphin_PT_FLT_MATH, Value: Dolphin_PT_FLT_DIV *requires "Dolphin Float Passthrough" package from the Package Downloader