I was looking through the GMT trello and saw this card for a thing called Play Awards that I thought was a cool idea:
https://trello.com/c/3wWxBg4w/1120-gamemode-play-awards-badge-system
Basically play awards would be given to players at the end of matches for doing the best at something, like getting the least points in a game of Minigolf.
I think this would be a cool idea for TU, since it would be nice to see at the end of a match who did the best at specific things like infecting players in Virus or collecting melons in Ball Race.