Loved the art style.
Audio for footsteps and flamethrower was good.
Controls for moving felt off. I would have preferred it if it only took one key to move in the game's primary axis instead of two key presses simultaneously.
The jump felt weirdly linear as well. Made it difficult to time.
The character doesn't stick to moving platforms, so you fall off unless you move with them. This also feels odd. Would definitely like it more if the character's velocity was relative to whatever it was standing on.