Very engaging entry! The gameplay loop was really well done. The art direction also complemented it's style. I also have some small notes that I would like. For example, weapon auto-reloading and the money to spawn right after the kill (it had some delay sometimes). 

Good job!

I really liked the art of the game. Would love if there are knockback effects on the zombies when using shotgun tho. Reloading time takes a bit longer on pistol which I think it should be the fastest among all the guns. Good work!

Cool! Felt nostalgic like I was playing a classic stickman flash game. Graphics are simple and consistent, and the sound effects are good.

Downsides are waiting time to start the wave, lagging when jumping, and what is the point of buying ammos if they are free? Could just make ammos infinite. Overall, this is a good entry.

Cool game but after surviving the first night, having to wait all the day for the second one, was kind of tedious. The game felt pretty good to play!