It's a good game. It was challenging but not very difficult. I did like the characters and their design, but I thought Kuno's (that's the hooded girl, correct?) voice acting was a little bit quite and simply not fitting. But that doesn't greatly affect how good the game was. The levels were entertaining and fun, especially when you had to memorize the patterns of ghosts. It was also easy enough to beat within 200 lives, making the game entertaining without wasting time or driving the player to the brink of insanity.
I'd like to see another game like this, with similar characters. I forgot to mention that I also enjoyed how the protagonist didn't actually speak. I would definitely play a sequel to this game. Keep up the good work.