Alright, that sounds nice! I don’t play a lot of side scrolling games, so I’m not the best to give feedback, but nice to have a zombie side scroller! I’m not sure whether RPS is best for creating a community this early in game development: The different gamedev/indiedev subreddits might be better. They are a little overcrowded though.
I wrote you a PM regarding a possible partnership, since your game will feature a multiplayer option.