A sequel to this game, entitled Nil-Ninjahtic: Ronin, is currently on Greenlight for voting. Please do take a look at it through
this link.
Nil-Ninjahtic: Ronin is a pseudo 8-bit action platformer. It combines much of the gameplay aspects of the previous titles in the series in a manner that differentiates it from its predecessors, minding the feedback received on those titles through Steam reviews, forum posts, and Let's Play videos.
It is currently available through
itch.io and
FastSpring for $1.99 USD. If Greenlit, Steam keys will be provided to customers who had purchased the game through either of those sites.