Nice work! I think the graphics and the combat system might need a bit of refining, but i liked the way you implemented corruption. I also found a balancing issue, the special attack thing is very powerful and you basically dont need to engage enemies in melee, you could just place it and use its giant damage and radius to kill every enemy.
Some animations were very good like many of the dying animations, but some looked a bit cheap like the melee attack animation.
If you expand and refine this game, it could become something super great!