I don't like that when I shoot someone once and miss they can spontaneously regurgitate an entire five story mansion out of their ass, complete with a pool and a two car garage.
its a tad bit difficult to have a ton of fun in this game, but putting challenges on yourself makes it a whole lot better. also the thing where you can control a character is cool.
I played it when it fist came to IOS. It only had zombies as the enemies and the menu had items that where infinite. also steak did not stack and it regenerated hearts instead of hunger since hunger was not a thing back then.