It's obviously Rock Band, or Guitar Hero...that's just hilarious drunk with friends... SSBM takes a close second though. (I'd say brawl, but drunk people forget that you don't have to swing the remote for brawl, so it just gets ugly and bloody)
...Oh and whoever said REZ is mistaken, that's a blast on other drugs...
...Oh and whoever said REZ is mistaken, that's a blast on other drugs...