How does your game represent "Power"?
You must fight against an alternate version of yourself, who is significantly more powerful than you. I've tried my best to emphasise the sheer difference in power between the player and boss, through the gameplay mechanics and stylistic choices. One example is that the boss can't take damage directly and must get staggered first.

You also have a dash-power bar, which you carefully need to control, since it's responsible for quick displacement, attacking and also blocking attacks.