I'm not sure what actually kills me every time, maybe the bombs, but no sound plays so I don't know. While it is fun, it has problems.
1) No FPS cap, my GPU started screaming instantly.
2) Most enemies did not know how to reach me, they would just stay in their place.
3) No damage indicators. Even if there was some sound, it would have been better but you don't know if you have taken any damage until you look at the tiny health bar on the bottom left.
4) For a shooter, there's no sensitivity control or remap-able keybinds