I’m not sure you understand the rules. You are forbidden from using intellectual property you have no right to use. Fan art games are not allowed in most jams, including this one. If you use a character, music or any other asset that comes from a famous game/movie, it is fan art as well as illegal to use btw, commercial or not.
Game wise, interesting premise. I cannot press E in most cases, and I cannot attack enemies after first blow exchange in most cases, so the game doesn’t proceed at all. The only rounds I could play were with bosses whose level is too high to win.