I've started seeing some users claim that this prototype is "fake" or "fabricated" but these claims are based on the origin of the ROM rather than evidence within it to suggest that idea. There's plenty of evidence in the game that lean towards its legitimacy such as this debug screen.

Was talking about the 3D Classics line on 3DS with folks and I mentioned Kirby's Adventure was notable for eliminating the in-game slowdown. Someone replied saying you could "do this on any emulator" and that's how I discovered the overclocking feature in Mesen.
Anyways playable Armadillo (no lag).