Siliconera writes "Xbox Live Gold members get a gift from Cave during Golden Week. Their Red Katana Shin demo will be available on May 4. Silver members will be able to download the file a week later."
Siliconera:" Cave’s console version of Red Katana Shin, a horizontal shooter where you control a ship that turns into a ninja as a super move, has a brand mode. This trailer shows us Zetsu Red Katana at the 1:25 mark.
Cave also added a new boss to Red Katana Shin, but only owners of a Japanese Xbox 360 will be able to play this. Unfortunately, Red Katana Shin is region locked."
Maan of course its region locked ):