I love the destructible cover, and the design of the levels themselves is great for instantly visually understanding them, which is obviously very important in a game where time is of the essence. I did run into a level where either I did not spawn or I spawned inside of something and was unable to continue playing. The sound feels very retro-arcade, and I mean really retro. It's kinda ok and definitely utilitarian, but doesn't really seem to fit as well with the .io styling of the game. Also, it is very grating to hear for more than a few minutes, and is important to gameplay so can't just be muted.
Overall, well done.