This is a game where you post something you can do, then something you cant. The player below you then says he cant do what player one could, but can do something else. They don't have to be related, or true.(Sorry if confusing)
eg.
P1: I can't sing, but I can dance.
P2: I can't dance, but I can play the piano
P3: I can't play the piano but I can...
