Great entry. So much juice and polish. The controls are tight, and the jumping and shooting feels right. The screen shake and the time stop/slow motion effects are nice. Can cause some dizziness since the screen moves with the mouse pointer too, but I didn’t think it was a huge problem. I kept coming back to the survival mode and tried the different guns. Difficulty ramp also feels right in survival mode.
I think I’d prefer having a brighter background color on the story levels, as the black is very dominant, and feels dark, but maybe that’s the purpose. The green background in survival, and the purple in the boss level feels good. And yes, the boss battle was great!