Mew is a type of Pokemon that comes out of a Poke Ball in Super Smash Bros. Brawl. It is an extremely rare Pokemon, being among the rarest Pokemon to come out of a Poke Ball (the other two are Jirachi and Celebi). When Mew appears, it uses Fly. This is not an attack at all. When Mew appears, it will appear in a bubble and meow. It then flies upward in its bubble until its out of sight. BUT!!! Mew, like Jirachi and Celebi, gives the player a treat when it appears. So, when Mew appears, it usually drops a CD. The CD must be caught very quickly, for CDs disappear shortly after they appear. If all CDs are collected, Mew will drop a Sticker instead. Since Mew, Celebi and Jirachi are so rare, players will get a notice saying that they met Mew for their first time: "You've encountered Mew for the first time. Strange things do happen". As with other rare Pokemon, an easy way to encounter Mew is to go into Brawl mode, choose a character and an opposing character (s), set it to a long stock match (say 50-99 lives) or a long time limit (60:00-99:00), set all items to be just Poke Balls and containers (Crates, Barrels, Capsules, Party Balls; and set all items on high so that they appear very often), and then choose a small flat stage such as Yoshi's Island (Melee stage), or Pokemon Stadium (Melee stage). Then during the long time or stock match, players can use the many Poke Balls that appear. Hopefully during the match, Mew should appear. If not, players can repeat the process several times and hopefully in one of them Mew will appear. Mew appears at a rate of 1/493, which is the total number of Pokemon as of Diamond and Pearl, including the Pokemon, Arceus, who hasn't even been revealed by Nintendo when SSBB came out. Mew has its own Trophy in Super Smash Bros. Brawl.
Mew's Trophy in SSBB
A New Species Pokemon. An extremely rare Pokemon that contains the DNA of all other Pokemon, it is thought by many scholars to be a Pokemon ancestor, considering the wide range of moves it can use. On top of being able to make itself invisible, Mew can also transform into any other Pokemon and use characteristics and moves in exactly the same way.
Mew drops a CD while Lucas trys to catch it. The stage shown here is Pokemon Stadium 2.