Got it running on a fresh mint 21 install, so woo!
I love a lot of the core mechanics and ideas here- drifting to build your quantum jump ability, upgrades per kill, etc. I think it starts to struggle though when there are a lot of enemies on screen though- there’s no incentive to move since touching anything deals damage to you, which means you can’t drift. Having the ability bar fill immediately with a single kill also means that staying still is the optimal choice.
I think I might personally enjoy it more if either touching enemies was neutral (no damage) or positive (hit enemy with speed or during a drift to get another kill). You’d need to add a separate entity that deals damage on contact still, but that could maybe help make movement feel more enticing.
This could be a really cool game with some tweaks- vampire survivors with a driving/drifting twist sounds like a fantastic pitch if you can pull it off!