category is as follows: start a game on a new save, breeze through the tutorial and skip john gutter and immediately enter pizzascape. time ends immediately after you kill the first stupid rat in all of pizza tower which appears on pizzascape. thoughts?

how about instead of 1 rat, EVERY rat in the game

I mean what if that's like both buy making 2 like stupid rat% and stupid rats%

No. Adding tiny categories like this would accomplish little more than to flood the leaderboard and water down competition. Stick to individual levels or Snotty% instead.