I recently did the Old Man glitch for missingno, and glitch city glitch too, and just curious to know, who people find out these glitches? and how do they do that? it's clearly not just "coincidence" that after playing the game this far, people would go to viridian city to learn catching pokemon from old man, and then fly over to cinnabar island to catch pokemon. same in glitch city. can't be just coincidence to go in safari zone, come out, and say no, save game, and then fly over to only those city that don't have a particular warp 4. come on! is it that some people hack the game ROM and reverse engineer it? i know these games are made in assembly language. hackers really go through all that mess and find out "bugs"? and isn't it illegal to reverse engineer the ROM?