My parents got me a berry Gameboy Color for some reason, and with that I played Pokemon Red. I learned about the MissingNo glitch and others and recall not wanting to do it for awhile as it couldn't be undone, but my curiosity got to me eventually. If I were to find the Gameboy somewhere, that game would still be all glitched up -- assuming its memory hasn't been wiped over time. I recently got a bunch of old video games from my parents' attic, so it's possible the thing's in there buried under all the N64 and SNES games...