Mew Glitch

Ok here is how to get mew when you are at Misty

1Face the Nugget Bridge and DO NOT FACE THE PERSON IN THE GRASS!
2 Catch a Abra.
3 STEP in front of the person in the grass were he won't battle you.
4 SAVE
5 Go one step were then quickly press the start button then use Abra to teleport
6 Go up nugget bridge and then mew will appear at lv 5

I tried to do that glitch but i forgot i face them

that glitch is so easy a caveman could do it.