It's a great game, but it definitely falls apart towards the end. The lag, dying instantly, and the fact that it's tough to keep track of all of the monsters at the same time means I couldn't get past level 5 and got pretty frustrated. The fun little detail of moving slower with an item doesn't help, even though I liked it at first.
The art is definitely great, though! Blending 2D and 3D and using billboard sprites is always an aesthetic I enjoy.
Definitely a solid entry overall!