Nice effort :) I got frustrated for a second, but managed to finish the game in the end. I also liked the particle effect on the orb and the character sprite (very cute!).
Here are some pointers:
* Some cool down period after getting hit and losing a life would be great, most of the time, I got insta-killed because my life was drained super fast.
* The big guy before getting to the door blocked me at the beginning and I got confused, until I just rushed by him, before he could do so.
* The second part of the level (after going through the door) could be placed further away, so you don't see it through the wall. I got stuck a bit trying to get to the door and was wondering why I cant get there.
Keep at it! Enjoyable little game you put together there.