A very fun game to master its mechanic!
The music and sound effects are an absolute banger! Like holy, the moment I hear the first note, I feel like an rpg hero. The Arts really fits the game as well.
However, there are a few things I want to point out.
1/ Lack of Polish:
a/ The Character: The simplier the mechanic, the more polished it needs to be to balance it out. Make the character sways when moved, create particles, add shader, add screenshakes, explosions, etc.. Pull all punches to make the character sastisfying to control.
b/ The Enemy: There are also a lack of visual cues on the enemy. What are their targets, which direction they are moving? How fast are they moving?
You can telegraph all of this by adding the correct amount of animation, particles and effects.
Also, add explosion or something when the two character explode. That is also a good start
c/ The Environment: Make it clear that the character can't touch the border by coloring it redder, or make it looks pointy. Again. Polish
Overall, it is a pretty unique experience. 6/10