Challenging? Rather impossible!!!
I love it how the authors tend call their games "challenging" when they managed to make an (almost?) impossible game!
I played it on the easy mode, becouse haveing limited lives in a game like this is just "too much of good". I appreciate having a mode with unlimited lives (thogh I think this is the only mode in wich a very skilled gamer may have a little chance to beat the game). However I still have to go back to a checkpoint if I die so I need to last between two checkpoint somehow. At first that's easy, but soon the word challenging fits to it. And later spikes and ghosts (man, how I hate ghosts, and any unkillable enemy!) get so numerous, and placed so awkward that in many places it's impossible to avoid damage; and there are much more than enough of these traps to prevent surviving between two checkpoints. That's why this game is not challenging, but impossible!
Too bad, becouse otherwise I'd like it's style. It has good graphics, ok sound, and it's easy to control. I like the characters lines too.
I suggest you to make in the Ep 2 more hack n slash, and less jumping around spikey platforms! I'm sure that would be more popular.