I've been thinking, couldn't there be a 100% category for this game? I'm guessing it would be Gold Paws on every level for Story Mode, Time Trial, and Red Coins, and then all Presents as well. This could be up for debate. What do you think?

There absolutely could be a 100% category. There just, until now, has been no interest in it.

There could also be "all red coins" or "all time trials" or ILs as well.