Weak move sets and lousy defence make ganondorf the weakest Smash Bros character. Followed by luigi who hurts himself. The only reason why luigi is not the weakest is because when ganondorf's shield breaks it is an instant KO.
No, Pichu is not a playable character in Super Smash Bros Brawl
Shadow is not a character in Super Smash Bros Brawl, unfortunately.
Midna is not a playable character in Super Smash Bros Brawl
What character?
No, Jack Skellington is not a playable character in Super Smash Bros. Brawl.
Dark super Sonic is not a character in Super Smash Bros Brawl.
mewtwo is not in super smash bros. brawl however mew is a trophy character
Groudon is in Super Smash Bros. Brawl as a Poke Ballsummon, but not as a playable character.
There is not playable character called Jet in Super Smash Bros Brawl.
Nope. Toad is not a playable character in Super Smash Bros. Brawl. Hope that helps.
No
Mewtwo is not a character in Brawl