The game itself has a mesmerizing vibe to it, and I spent way longer than I care to admit just fooling around with it. That being said, some sound effects or other forms of player feedback would be great - it wasn't always clear when I'd died as the cockroach, so every time after the fist hit the ground I had to spend a few seconds working out if I'd switched or not. Also, some sort of high score system would be great - maybe it counts up when you're the cockroach and counts down when you're the human given the goals of each mode?
Still though, great game!