Nice work. I had to play through it all because it was so cute! I think if you add death animations it'd add a lot to the jumping on enemies and being defeated feelings. Great level design too and it became more difficult and the health came into a factor on the 3rd and 4th levels. RE: the camera, I think you should try enabling the Drag options in the Inspector and seeing how that feels. I sort of got motion sickness because of the real quick vertical movements but I got used to it. Overall wonderful job!