Fun idea! I like that you get stronger as you get ‘killed’ until the final downing. Took a bit for me to realize, but is a cool feeling.
The enemies were a bit too jumpy and tanky for my taste, I just held down the left mouse button for 10 minutes. I made it to level 9 but seemed the heroes just keep respawning.
Shooting/movement felt fun though and I liked having a golem buddy to call in!