Level design and music were perfect, good variety of enemies and weapons <3

Also I seen a few complaints about the mini bosses being reskinned normal enemies, but that isn't really a bad thing in my opinion:
Most boomer shooters don't even have mini-bosses, so I can't really fault this game for reskinning enemies for a mini boss when most games don't even include them.
What matters is the final boss: He was unique and that's the important thing

One thing I do wish was that the game was longer, BUT for a solo dev making so many unique environments with that level of detail I can understand that it would be very time consuming

Just hope some DLC or an illwill 2 comes out!