Thank you so much for playing it and for your comment! :)
Aw, sorry for the freeze mate, happened the same to me on my laptop. There is a bug I didn't had the time for solving it, on the enemy spawn, that keeps spawning foes until infinity.
My original idea (and future builds) is meant to be more tactical with not so many enemies. And also there is a lot of room to optimization, so it'll run smoothly.
Thanks again! :)