The History Of Shinobi
Thanks to an anonymous reader for pointing to Arcadeperfect's article on the history of the Shinobi series, 1987-2004. It starts at the "maliciously hard" original version of Shinobi, through Shadow Dancer, in which Shinobi's mutt Yamato "retains the title of the video game dog daddy", all the way up to the current PS2 incarnation of Shinobi, which the reviewer claims is a "classic gamer's dream, for the same reasons it'll give casual gamers nightmares."
For more information on Shinobi consult your local library.
All the creatures will die, And all the things will be broken. That's the law of samurai. (Jubai, 1605)