This is pretty good. I really like how there are no collectibles, gaudy gfx/sfx bloating up the screen, or convoluted tangential systems. Everything is fairly readable, but with plenty of flavor still.
At the start I was lasering whenever possible because the spread shot felt a bit unreliable, the enemy distribution seemed to always favor taking out major threats and switch delay appeared to be non-existent. But then I got the impression the laser DPS is barely any higher, if at all, so it sort of evened out.
The patterns on the final boss are nice but it switches them out too quickly. You barely have to deal with them.
The congratulations score screen showed a different number than the score UI. I think that might be due to it showing up too soon and then not refreshing?
I think I died to a bike spawning in from below me and one of those exploding spikes? It would be nice to have clearer visual feedback when you get hit. Both felt like particularly aggravating deaths, too, but it's likely I am just a salty scrub.
Being able to resize the window would be nice.
Sound options reset themselves when you return to the main menu.