It’s one of those urban legend glitches and it actually turned out to be true! In Super Smash Bros., there were three characters that are non-playable; one of which being Master Hand, serving as the final boss of Single Player Mode. The new episode of myth-busting show Pop-Fiction explains, how players can unlock the disembodied gloved one.
Another interesting glitch uncovered a few years ago, if you missed it back then, was the “Black Hole Glitch” which creates a vicious black hole that kicks people up to 999% damage. We’re guessing these two will give you enough incentive to take some dust off your Gamecube.