Ninja Gaiden Part 4: Did Ultra compare this to Castlevania enough?

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Remember when you're life had absolutely no meaning to it until your father died and you decided to dress up like a ninja to avenge him? No. That's good. Ryu Hayabusa is on a goal to travel through 8-bit sidescroller games, only unlike anyone before him, he has to deal with the power of CUTSCENES!!! Not only that but it also has some of the hardest difficulty in a game that's worthy of the "Nintendo Hard" title.