This glitch is very strange. go to viridian city and talk to the old man that used to block the way. he will say,"i've had my coffee and now i feel great! are you in a hurry? say no and he will show you how to catch a pokemon. after he is done fly to cinabar island and surf so you are half on the water and half on the land.you will either come across a golbat lv128,a snorlax lv141,or a missingno.lv80-lv148.NOTE:do NOT catch missingno. otherwise it will glitch up your game.NOTE:if you do catch missingno.do not save otherwise it will glitch your game up permanently!p.s.you will not be able to catch snorlax.p.p.s.you will get a small chance to catch mew.p.p.p.s.golbat will be quite easy to catch i got 2.p.p.p.p.s.missingno.will have 3 moves watergun,watergun and sky attack (pretty strange that he has 2 of watergun!)