Lmao this game was hilarious, I also liked how the tutorial was delivered through voice, it meant that I could screw around and try to figure stuff out on my own, but I wouldn't be stuck for too long since the voice would catch up eventually. The narration gave me a similar vibe to Trivia Murder Party from Jackpox, which is a good thing!
I appreciate how simple the game is, but the single linear upgrade path which doesn't give me any indication of what comes next doesn't really give me much incentive to play the game past the point the narration ends. I had 1000 blood, the next upgrade was at 4000 blood and for all I know the upgrade could've been 5 more ammo on my pistol. I don't think this would be an issue if the gameplay wasn't so easy, but I felt like I could pretty easily find a sweet spot to hold the mouse button in a certain spot to shoot Derek into oblivion. So at that point it was just grinding up to 4000 blood.
Overall it's a pretty cool game though, well done!