It's basically the simplest form of fantasy sports in the history of mankind.
Each week you pick one team who you say will win their match. If they win, you move on to the next week. If they lose, you're out FOREVER. Last person in wins. You can only pick each team once, so you can't like pick the pats every week. Even if you know nothing, it will be fun. Make a funny name!
Signing up is very intuitive.