Enjoyment: Good, I liked the game idea and progression.

Presentation: The palette of colors, transitioning from purple to red, gives off a good vibe, but the UI fonts? Why don’t you try using pixel art fonts? It would be cooler.

Concept: Cool and creepy, I liked that! The pixel art and sprites were well-fitted.

Use of theme: We don’t have a direct villain; we maybe have some objective.

Use of prerequisite: OK.

Controls: The range to drain the blood sucks sometimes.

Nice job. It was maybe tuned a hair too difficult for me. I kinda struggled to feel I was making any progress. Nice game for how little time you had.

I like this one (almost ended up using some of the art too)
Very good visual and audio presentation.