Super Street Fighter IV

Just create (or join) a Team Battle match in xbox live and win!

If you are not good enough to win, you can ask to some friends to join in your match and let you win.

At the main menu:

Xbox LIVE BATTLE -> Team Battle -> Quick Match

After you join a session, it will place you in a team. After you've been grouped into either "Red" or "Blue", you will have the option to sort yourself in which order you'd like to fight.

If you're hoping to put the most minimal effort into this achievement, change the icon on the left of your name to the highest number. (IE: If there are three people, toggle to "3" and you will play third. [Last.]) The game will then start and you'll watch your teammates battle the opposing team one by one.

If you're lucky, your other teammates will be good enough to eliminate all the opposing players before it gets to you. That ended up being the case for me; after watching a few rounds, I got the achievement just by being affiliated with the winning team.

If, by the chance, your teammates lose their fights, you'll have to try to duke it out yourself. Happy sailing.