Lots of 5 stars for me! It has a really lovely audio scape. Playful but a little creepy. I liked that the audio cues weren't 100% what you'd expect (at least not for me) to define "good aliens" vs "bad aliens", and the little sound effect WHOOooooooo at the beginning of the level was spot on. The music felt on brand (like sorta retro?) but not typical. ... for some reason it reminded me of some old animations I watched on youtube for Hitchhiker's Guide to the Galaxy, and I dunno I just found myself with a smile on my face. Also nice font (hahahahaha). If I had to provide a critique, I'd say it felt a little frantic, though I know that was what you were going for. The movement of the avatar felt a little too "floaty" ... and I'm not sure the movement is necessary to the game, since you can shoot in any direction with your mouse. It might be interesting to try a button for shooting and reserve the mouse just for letting aliens "through" ... I struggled remembering the correct mouse button, and it might have been easier for my brain clicking space to shoot exclusively, or something. But overall a very solid entry!