Very nice looking game. I really like the esthetics and animations. Spin is a core mechanic and feels rather well. I like that you have to evade the attacks by moving back and forth and also that the game quadrants do different attacks. Also the bullet-hell like upgrade system is quite cool.
I didn’t manage to kill the first boss but came really close. In the end it god rather hectic as the small minions spawn and I didn’t know how to counter them, so they spanked my a** :P
Overall a nice and game you have there. A Job well done!