I've really been getting into my PS2 lately. Most of the time I'm just playing classic compilations like the Capcom Classics Collections, or modern updates to classic, arcade style IP's (I.E. Gradius V and the new Contras). But lately I've been having a blast with challenging 3rd person action games. Not just any 3rd person action games however, I'm talking about difficult action games, with arcade influenced scoring systems and/or rank achievemts. The title that really got me interested in this style of gaming is Nightshade.

Now, there are a few titles that fit the bill that I already know about. They're the Devil May Cry series (exluding #2 from what I hear), God Hand, Bujingai: The Forsaken City, Gungrave Overdose, and of course, Shinobi. What I'm looking for, from you gaming vets out there, are other PS2 action games that can really pose a challenge. Any recommendations?