Rocketflip. Well, I was planning to do this on Pokemon Yellow, but since I wanted to test out the MissingNo and 'M glitch, I progressed faster in Red, so I just used Red to record it. Yes, I did use cheats for rare candies and master balls for glitch testing and my laziness to level my Pokemon. ^.^;; Anyways, here's how to get Mew (legally): Prerequisites: A) Don't battle the kid with the level 17 Slowpoke after Nugget Bridge. B) Don't battle the Gambler facing towards the door to the Underground Passage. 1) Go to the Underground Passage (the one between Saffron and Lavender), make sure you save in front of the door to the passage. Go down and press start IMMEDIATELY or else it won't work. If it fails, just hope you saved there and start over. Then access your Pokemon from the menu and fly to Cerulean. 2) When you're in Cerulean, you should notice the start button is disabled. To fix this little glitch, go to the trainer with the level 17 Slowpoke, make sure he walks up to you or it won't work. Battle him and win. Your start button should be working now. 3) After beating the Youngster with the Slowpoke, fly to Lavender Town and head west (left) to the route that Gambler was on. 4) You should notice the menu appears from nowhere, I suggest you save before this because once you press B, Mew appears. It's a fairly easy battle, the Mew is level 7 and only knows pound. Attempt to catch it and you obtained a Mew! Congratulations, you just caught a Mew LEGALLY! XD NOTE: I know I spelled <b>...</b>