Well i had a amazing discovery with my pokemon yellow i bought a couple of years back. As some of Ты may know, there are like two known ways to get missingno. Who ever told Ты that is wrong! I found over seven other ways to get missingno! On вверх of that the MEW glitch in yellow is actually legit! It does exsist! I did it twice and got two mew's! I tried doing these glitches and all of them work!

So, this is one way to get MEW...
Ты start out in Cerulean City. Ты must not have beat the gym there and must not have battled the guy Далее to the nugget bridge that says,"I saw your feat from the grass!"and of course Ты must go and defeat the nugget bridge people. With all that said, lets get to how the cheat works! Ты go up route 24 and as soon as Ты get to the end of the nugget bridge head left. Go down until Ты are one step away from being directly Далее to the water that takes Ты to the Unknown Dungeon. As soon as Ты walk that one step press START right when Ты press the down button. The guy standing there will see Ты but instead of engaging in battle the START menu will come up. Then Ты will have to teleport (using an ABRA Ты can catch from the route connecting Cerulean and Saffron City.) Use ABRA to warp back to Cerulean. (you must have healed at the pokemon center there first.) The START and "A" button will not work. Go and battle the swimmer at the gym and after Ты beat him, the buttons will be able to work again. Head north and right when Ты reach route 24, the START menu will pop up. When Ты close the menu, Ты will go into a battle (without being in the grass! WOW!) and the pokemon Ты will battle is a MEW! Now here is the hardest part. Catching this pokemon is not easy. It is treated like a legendary so Ты have to either put it to sleep или paralyze it and knock out most of it's HP. As soon as Ты do that, Ты will have yourself a MEW!