Tecmo's PS3 update to the original Ninja Gaiden isn't due out in America and Japan until June, but those wanting a sneak peak will have to wait less than a month. In the latest issue of Japan's Famitsu Weekly, Ninja Gaiden Sigma director Yosuke Hayashi revealed plans to make a playable demo of the game available on the PlayStation Network starting 4/27. The demo will include one specially created chapter that won't be in the final version and will allow players to use a large number of weapons from the start.