Halo... 2 XBOX's and 4 players, 2 on each. We had a race to see who could beat a level the fastest in legendary. I think that it took 7 hours for me and my partner and like 8 hours for the others. When we finished it was about 6 in the morning and we decided to take a walk. Walking was really hard...... :P

But besides video games I'd have to say bowling.