Are there lag spikes, bugs or glitches? Is the frame rate to low?

Is the boss fight challenging enough or is the difficulty to high? Any attack ideas or stuff I could add?

Does the art style look good, is it appealing? Is there anything to change/improve?

Is there anything to change about the movement? Are the controls unresponsive?

If you have any other suggestions, ideas or improvements in mind, I'd love to hear them!