1. It would be nice if they had the round numbers 11+ showing the number in the bottom left hand corner where it shows the tallies for the rounds. For say you're on round 32 it will show a red 32 in the lower left hand corner.
2. It would be nice if NZP had the crawlers (the gas zombies like on Kino Der Toten) because I think that would make NZP more entertaining.