So, I finished Knack last night. I played through it on normal, and I can safely say that I have never in my life experienced a game of this difficulty. There is challenging, and then there is this game. I know with games like Demon Souls and Dark Souls, yes, they are hard as shit, but you get a real sense of accomplishment when you finish a level or beat a really tough boss. With Knack, you finish the level or beat the boss because the game decided it was time for you to move on. The cheap, unavoidable damage and unpredictable pitfalls were a chore to get past. The controls are tight and the camera only gives you a bad angle a couple of times, but the cheap enemies and environmental hazards are really something to behold.