My friends and I unlocked Sonic around 175 Brawl matches.
I don't know why or how, but it was sweet, especially since everyone said it took 300. I'm still confused why Sonic showed up when he did.
LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )