It's good, but it's glitched
I really like the game, the voice acting really made the game and brings a personal feel to it, but here's what broke for me.
1) The zombies can sometimes travel through walls
2) Once Mimi had joined, both of my allies were instantly destroyed
3) There was a kind of conga line of zombies once my allies had died that was unbeatable, and when I finally did muster up enough strength to take them down, I had the option to buy Mimi, which I didn't, and now both my allies remained dead, and the game froze and has remained like this.
Either way, I hope it gets fixed and congratulations on a great game!