Intended to play it for 5 minutes just to see what it was like and ended up playing for an hour. The game play is fun and fluid, the visuals easy to read and the game play loop is very captivating. The ways the game increases in difficulty is great too.
If I could offer some advice it would maybe be a health bar? It was hard for me to know how far away I was from death as some enemies would kill me and others wouldn't.
I look forward to where you go next with this. I think something like small buffs or perks that drop from enemies could be fun.