This is an awesome little game, I'm glad I slipped in for a last minute rate! The main thing that I had trouble with was the dash, I wanted to use the arrows to dash left and right since it made sense spatially. X also makes sense, but when I'm in the heat of the moment, I always seem to use the arrows to dash, and end up firing instead of moving. Another thing to probably fix; pressing escape in the tutorial somehow crashed my computer... Dunno why, possibly due to escape simultaneously being the command to exit fullscreen AND return to title?
Anyway, the game is really fun, and it'd be awesome to have extra variation like bosses. Random thought; it'd probably be fun to have some sort of procedural 'endless mode', where you can climb up a never ending tower rescuing people, and overcoming lots of procedural goodness. But I could also imagine bosses being a ton of fun! I love the art style in this one, the monochrome palette + red and yellow is so striking. Everything was super responsive, and all round it was a nicely polished game. Well done, I look forward to your future updates!