Game feels great to play, music fits perfectly, and the voiceacting adds a lot.
I like that it's technically short and sweet - only 80 seconds. Difficulty however made it a 10 minute game, which I still haven't beat, and I think it's really good - making the game hard can be seen as a cheap way of generating playtime out of nothing, but in this case it always feels like I am learning and getting better, so it works.
The dice roll mechanic felt a bit underdeveloped. There is a die in the corner displaying how much time you will get from the next kill, and it is actually a valuable piece of information, that can be used in decision making, but it's position on the screen coupled with a somewhat lenghty roll animation and an extremly fast paced, punishing gameplay made it impossible to use. I am sure, there is a better way to convey this information to the player, like big transparent die in the background, or something like that.
Overall - great game. Aestetics are catchy and the gameplay is fun and addicting. Good job!