the controls need a bit more work,I liked the switching between black and white and the ghost design good work :)

I liked the duality of visuals when switching between black and white! 

As cameronac said, the controls are a bit hard to master.

Overall good job!

Nice game! Controls need some work. The wall jump mechanic works in an unusual way. Collisions are wonky sometimes. What I would of preferred for the controls would be arrow keys to move and zxc as jump, dash, attack or dash, jump, attack. Would of loved to hear some sounds as well.  Other than refining the controls, movement and adding in sounds. I'd say that would basically be it.  Overall love the art style, levels are very nice, and great job with the ghost mechanic! Took a while for me to figure out you can hold jump a little longer. I have the same thing in my game.