Pretty unique concept, even if it took a bit of time to figure out how the slicing mechanic works. I love the Vampire drawing!

I think your blood concept is very unique, however, the implementation needs some work. The maze always starts with the cursor on the left side and even though there is an opening to the left, I still take damage if I do that. This leads to the player continuously moving to the right. I think an easy fix for that would be to have the cursor generated in the middle of the maze and make both the left and right exits viable. That way the player can choose whatever exit makes the most sense.

The enemy generation rate is also too quick IMO. I get absolutely swarmed in under a minute. Even if you want the game to be challenging, I would ease the curve of the enemy generation rate just a bit. You likely got very skilled at the game during development, but remember your audience is brand new to it.

Overall, great use of the limitation, just needs some refinement. Thanks for your game!