[quote name='BetaDemo']Shinobi was $1 on PSN last week.[/QUOTE]
Revenge of Shinobi, a sequel to the original Shinobi, was $1 last week. I think the 3DS game is the third unique game Sega has released with the title "Shinobi."
I finished about 2/3s of the game. Like others have said, starts great and gets boring later, so boring that I couldn't even finish it. That or because there's just too many games these days to spend my time on, unlike old times.