Ahh while browsing the interwebs ive stumbled across this gem, Sumotori Dreams.
A game which pits two players made of several squares in a sumo style game. The unique thing about this game is the physics system and how that effects the character you control, First of all your little block guy ain't all that smart and cant really stand without your help, and as your try to control him with almost no success as he tips and falls over drunk like, it will surely have you in stitches. Bottom line is, it can be alot of fun for a while and its a very small file so you'll barely notice it on your rig.

Overall i give Sumotori Dream an 8 out of 10 Go check it out at http://www.gravitysensation.com/sumotori/

And some videos http://www.youtube.com/watch?v=hOvq3-oG5BM

http://www.youtube.com/watch?v=PdWmy-CrZl8&