It varies what Tenser does, he tries to make all of them fun. There are also activity trophies (most active), dunce (you don't want this, it's for too many infractions which is warnings), community (most friends, comments, and something else I forget), and posting champ. Right now though there is something called Defender of the crown which just got reopened because it was closed for the tournament, you can win badges in that if you beat a defender in a game. BUT the game must not have any scores besides your own and they cannot be farmable. Farmable is racking up points without naturally progressing through the game, which is frowned upon. Example of that would be something like Double Dragon 2, beating up player 2 to gain the high score. Btw here's the link to it:
link. Chances are I missed something so if you have any questions about what I said, I will try to clear it up. Thanks!