I have a mew on blue version but i got off pokemon stadium 1 (2nd hand) i know how to get more i almost have on one red version too the trick is when you go on the s s ann in vermilion city to get cut, after u get the HM u let urself die and the ship dont leave. Later in the game when you get strength and surf come back, surf across to the right of the inside dock, there is a truck, use strength to move the truck, you fall into a hole, mew appears, rumour has it that it can evade 1 master ball but can be caught on the second. If this post is still alive in a few weeks ill post a digi camera photo of 2 legit mews lol