Armored Core developer and PSP master porter From Software uploaded a bunch of videos for Onore no Shinzuru Michi wo Yuke. The gorgeous ninja puzzle game came out in Japan today.
In just a few months another ninja game, albeit a familiar one, will come out on the PSP. Tenchu: Wrath of Heaven Portable is slated for August. The first trailer is underneath all of the Oreike ones.
Tenchu: Wrath of Heaven Portable trailer