I've seen this game on two other (Pokrmon) forums I go to.
So, I thought I'd bring it here!
It's called the ^> v game
Here's how it's played:
^ - something about the poster above you, or a reply to what they posted about you
> - something about yourself
v - something about the person below you, using your obvious psychic powers.
Sound easy enough?
so, for me:
^ - (can't do it, being the first post and all)
> - has Rainbow Dash as their avatar
V - will have her in their avatar as well