Hmm, there are some good ideas here. I'm not sure if the charge is balanced. It seems like more charge is used to defeat enemies than is regained from defeating them. The charge in general is lost quickly.
The music is nice. Unfortunately, an error occurred after I started, and two instances of the music played on-top of each other, making it sound uneasy.
I got stuck in the obelisk(?) room and I couldn't find my way out. Overall, it's pretty fun, if a little confusing.
All-in-all, good work!