Shank developer Klei Entertainment's love of side-scrolling stabbing surfaces again in its new game, but with a little more subtlety. Ninja sneaking and stabbing sim Mark of the Ninja, will be released via Xbox Live Arcade on September 7, the indie announced yesterday.

A price hasn't been confirmed yet though, Klei said on Facebook.

Mark of the Ninja will have you sneaking into highly secured areas, smashing lights to make shadow, distracting guards and luring them into traps, and generally causing ninja trouble.

Here's a old peek at a little ninja naughtiness: