The version of Nin2-Jump included with Instant Brain is called Nin2-Brain.

Cave are donating proceeds from sales of Nin2-Jump to earthquake relief efforts in Japan.

While Cave games are thought to be difficult to master, Nin2-Jump’s first stage has the be the easiest level from the Tokyo based developer ever. A player cleared it in under three seconds in this trailer.

Cave’s shadow play style action game for Xbox 360 is just 400 Microsoft Points ($5).

Cave contacted us about their second Xbox Live Arcade title and said Nin²-Jump’s world is based on Japanese shadow plays.

Nin2-Jump may be a sidescroller but it sure looks like it was made by Cave.