This game is hard, but not unfair ! it will time some trial and error but you'll eventually get the jist of it. I wished the game had explained the color changing mechanic because I'm still not totally sure how it works. I've noticed that yellow makes you faster (which is instrumental in fights given how big you are in the middle of the bullets) and I guess blue gives you a shield, but I couldn't figure out in which conditions because it seems that sometimes it gives me a one hit shield and sometimes doesn't. I still don't know what red does, as it doesn't seem to make me hit harder.
You have great music and voice acting, sadly there seems to be a mixing issue, as the music is way too loud compared to the voices, sometimes you can barely hear them.
Wish the game was longer and had pauses between the fights, but still very well managed and a fun time.