The game is cute, I especially liked the player animations (cape movement/dash/attack).
In my opinion, a life bar would improve the game a lot. At some point in playing, I wasnt sure whether I got already hit once or twice, but this just might be because I am old and tend to forget things.
Btw as a sound guy, I'm always somewhat disappointed when a game has no music at all :( The charming pixel art would most likely inspire any sound artist to do something cool :)
Anyway, it was fun to play your game, thanks for making it :)