Nicely done, I enjoyed it. For some of the levels it didn't matter that attack/jump is the same action, but it would be fun to try more puzzles built around that mechanic.
God, I would have loved to have more time to make a few more puzzles, Focusing on that Hit and jump, I had some more great Ideas, but I thought it was more important to get more "simple levels" for ease of play, and teaching the player.