The 2004
“Interactive Multi-Game Demo Disc Version 16″ GameCube demo disc contained a playable demo of Mario vs. Donkey Kong. In the code of the demo, it is internally named “MARIO DONKY” (highlighted in the hex editor screenshot). The misspelling of “Donkey” was apparently noticed in time for the actual game’s release, where that name in the code was changed to “MARIOVSDK” instead.
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