The game is fun, though the health indicator status isn't super clear regarding current and total health.
It's possible to buy a health restore from the shop when you're already at full health, which is a waste of funds.
Also, the upgrade that increases rage bar fill but also reduces rage time can be detrimental as the rage status forces movement towards the mouse cursor, runs out very quickly and leaves you vulnerable to contact damage when it ends.
It would be nice to have the option of activating rage status with a key press, instead of the rage status being forced.