Nil-Ninjahtic: Ronin is a pseudo 8-bit action platformer. While it integrates gameplay mechanics of the previous titles in the series, they are combined in a manner which differentiates itself from its predecessors.
Rather than playing as a ninja-like protagonist, the main character shares more characteristics with that of a samurai. Usage of the environment is still the focus of the platforming and puzzle elements remain intact, although progression through each level is straightforward without the open-ended nature present in the previous titles.
For more info and screenshots, please do check it out on Steam.