A very good game concept.
Good musics.
Graphics would rather to be something like SNES, Atari or 8-bit, or more stylish. Boss is more harder than it looks like. I like to see more bosses while the game itself was very short; knocking the mean boss out off the ledge were really challenging, but actually is the real fun core of this game which is enjoyable. Frustrating feature is while the boss does all moves randomized; it should be at least pseudo-randomized with short patterns. Waiting for the new bosses - and maybe to see this, for an example, in an old but stylish arcade-coin game machines.
Thx for the nice game experience though; beaten in 09:12 sec