Neat concept! I like the idea of tracking my own waves and trying to get through the "hero"'s respawns. The variety of minions to use was really neat too.
The controls were a bit rough though which made the game a lot harder. It would have felt a bit better if wasd moved in consistent directions, such as w moving up, s down, etc rather than basing it on the mouse cursor. Otherwise, solid game and enjoyed it!