Omg literally everything about this is insanely fun that I have no idea where to even begin - the gameplay is addicting and keeps me super engaged. The farthest wave I've gotten without losing any lives is Wave 23; once I start reaching the Waves in the 20's, I can really feel my reaction time being tested hahaha.
Also, the art and sound design REALLY compliment each other. I'm a big fan of the music because even when the gameplay was starting to get stressful, I felt very chilled out. I also really appreciate that I can adjust the music and SFX volumes from the pause menu.
A few things of note -- the first time I played, I'm not sure if I just got horrible luck but for some reason all of my boss fights on my first run was the one where you have to shoot the green pathogen LOL. I also noticed when I'd die and was on the end/leaderboard screen, some in-game events would still happen, specifically the WARNING! PATHOGEN APPROACHING effect, BUT I think that might have been a result of the timing in which I died. It was funny though
Even though I talked about those things, they did not at all affect my enjoyment of the game whatsoever. Hope I can keep my spot on the leaderboard!!!