It should have less drums and focus more on the "8-bit final boss" effect because for me it sound like you're trying to cover more than one genre at the time and i personally don't really like that.
It's still good though, liked how it twisted itself at 00:28 and 01:45, it's not the best piece i ever heard but it is good and it deserve 5 stars and a vote of 5 from me.