Nice double world mazes/puzzles, it felt natural to switch between two worlds to navigate it. Battle is interesting with these many choices you can find a way to defeat any enemies without loosing any health in the end. I felt like I wanted to use potions outside of the battle though.
There were quite a bit of places where you switch to another world and fall out to the outside of the level, making it hard to return back to the place you were. I also found audio unengaging, it feels like it needs a bit of improvement in that area.