Team Ninja should add a super-easy mode called Ultimate Hardcore Nightmare Mode to the next game.

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Today at the Tokyo Games Show, Inafune and Team Ninja announced a collaborative effort on the next Ninja Gaiden game: Yaiba: Ninja Gaiden Z.

FORBES: Keiji Inafune And Team Ninja Announce 'Yaiba: Ninja Gaiden Z' At Tokyo Game Show

Team Ninja has also revealed that Ninja Gaiden Sigma Plus 2 is coming to the Vita next year, adding to the increasingly good line-up of games on the system.

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The team followed Ninja Cow for miles over rough terrain, across snow and ice.

WSJ: Ninja Cow Had an Excuse for Udderly Unbovine Behavior