I urge you all to try out " Snowball fight " in the INDIE games sections...
Its 240 points to buy if you like it ....(Remember you get a trial so you need to buy )
I reckon we could have a really good laugh with it ..
I have not brought it yet , but I will if another 3 get it because you can play 2 v 2 over xbox live.
It plays really well
Also try out the Home Run Challenge game , once you get going and start getting streaks its very addictive