I love the game but I apparently ran into a bug right at the middle section? (after you change the first time, then the hero adapts the 2nd+) here I used one of the moves that killed him and the animation ended.
However, from that point onward the hero keeps getting hit from an invisible force, in the middle and right edge of the screen, that keeps killing the hero in the first phase. Thus dooming the hero forever to never overcome the challenge, lol.