The boss does has health, but we didn’t show it, sorry about that.
If you willing to try again, it takes about 40 seconds to cause the boss to enter next stage.
I clicked it for a while, it came out of the wall. And i was clicking it more... But nothing looked like it was happening .
Oh…then I’m not sure about it. The boss meant to have 3 stage, each stage boss get more blood on his body, and attacks get more rapid. Sorry the game didn’t let you experienced it, I will upload a fixed version after the jam ended.