Well, I don't play SSB, so I wouldn't care about that, but the fact that I'd no longer be able to play piano or any other instrument, write, type, draw, or play most of my favourite video games would probably ruin my life. Assuming I didn't just kill myself, and I couldn't have at least a few of them surgically reattached, I would sue anyone and everyone who could possible be responsible for the accident for damages, then sell all of my games, clothes with buttons or zippers, keyboards, consoles, bikes, and guitars, and go buy a Japanese PS2, a nice pop'n Music Controller, and as many of the games as I could get, and become a Pop'n Music legend. I'd also become a hacky-sack god, and probably get back into board sports.
WWYD if you were given the option to be any animal that you wanted to be (retaining your memories and thought capacity), but had to be that animal for the remainder of your life?