MISSINGNO in early Pokémon games was a bug, and so is very unlikely referenced in a Super Smash Bros. trophy.
Yes you can. You can find the mew trophy in coin launcher you can get it in super smash bros brawl and super smash bros melee but mostly super smash bros brawl.
mewtwo is not in super smash bros. brawl however mew is a trophy character
No.
Swimming Trophy? There is no such thing.
No
No but he is an assist trophy.
Shadow is onlyAccessibleas a Smash Trophy.
He's not in super smash brothers brawl but he is a trophy and a sticker
While Louie is not a playable character in Super Smash Bros. Brawl, he does appear in the game as a collectible trophy.
Unfortunetly, no. You can get him as a trophy, though.
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Only as an Assist Trophy.