Thank you for your feedback. It's great. I will just comment quickly on the points.
1. Yeah, we neglected that since we are on a very low budget.
2. This could be a lot better, we didn't spend that much time on optimization and a big one is the AI system we use for the zombies. It's something we want to look into :)
3. We did the game from a controllers perspective, and when you aim with a controller it feels right. However we discovered this bug when we created the mouse and keyboard controls but we didn't have time to fix it.
Thank you for the comment. If you havn't seen it we are running a crowdfunding campaign, and we really need all the support we can get. So if you are interested in the game we will have a lot of cool updates if you pledge: www.fig.co/jazon