To find out what stairs you can currently challenge someone in, first go to the Main Stairs Page, then click on "Show your stairs only" link. The ones in BOLD are ones you can make a challenge in. .
I am not sure if somebody has asked this before or not, but i will have to retire from all of my stairs soon and i am in so many, is there a feature already implimented where i can retire from all of them at a click of a button instead of going through them all one by one.
Sorry Hitman i gave u wrong information, i never realsied what Play bunny had said, never noticed the time thingy, its probably because my games are over that quick.