Definitely one of the better games i played for this Jam yet. The tools are all there, it just needs a bit of fixing.
The collector was too much missing, and i didn't even know how it exactly worked until way way late into the game. And since it worked so inefficiently, it was the only thing i upgraded, and it still wasn't worth it spending all that ore on it. In the wave where the first UFO appeared i barely had any ores left. I was able to destroy the UFO and some asteroids, but then were left ammo-less and quickly died. Some optimization needs to happen here.
But i had some fun while it lasted, certainly! The graphics also looked good. Heck, i didn't even notice the lack of sound ;)