Using health to explode the head is a clever idea! The right mouse button as movement is very easy to understand. For improvement, clicks should set a destination point instead for more comfort like the hero movement in Dota 2. The finger gets sore if the mouse button needs to be held down the whole game.
The dash needs to be reworked in my opinion. It feels like the screen skipped forward instead.
The background caused some eye strain like an optical illusion.
The gameplay fits the theme perfectly.