Ninja Gaiden Sigma Plus free with PlayStation Plus this week

This week, your PlayStation Plus membership will entitle you to the Vita port of the updated PS3 port of the Xbox game inspired by the NES game based on the arcade game, Ninja Gaiden Sigma Plus. The Vita action game is the latest offering in the handheld Instant Game Collection.

A few other offers are added to Plus this week, cheap if not free: Madden 13 is $29.39 on PS3 and $19.59 on Vita, 30 percent off; Gatling Gears is $2.50, Section 8: Prejudice is $5, and Greed Corp is $2.50.

This article was originally published on Joystiq.