A couple weeks ago Aug 23-25th I participated in the NM Game Jam 2013. we were a team of 5 so we called ourselves 5 guys. Picture below.
We were giving a Theme "It takes two to tango" and told to go at it. also an hour after the Ludum dare started. Which theme was 10 seconds. we decided to skip that. and formulated a game that takes two players to beat a boss. trailer video below.
and here is the gameplay video.