Viva Las Vader
What happens in Vegas...
Many of us have been decrying the overall lack of gaming gear here at CES, but while there might not be much video game hardware on display at the Las Vegas Convention Center, several video game publishers are in town showing off their latest wares, including LucasArts, Eidos, Microsoft, and Namco.
The latter is perhaps the most interesting, since the title being shown off is the latest iteration of the fighting game Soul Calibur, which first hit living rooms via Sega's Dreamcast console back in 1999. The series features an eclectic cast of medieval Japanese characters battling over a magical sword, and the new entry, Soul Calibur IV, will be available later in 2008 on the Xbox 360 and PS3.
We got a chance to spend a little hands-on time with the game, which will look and feel familiar to fans of the series. The most noteworthy part is the addition of two well-known characters to the mix--Star Wars stalwarts Darth Vader (in the PS3 version) and Yoda (in the Xbox 360 version).
While Darth himself and a handful of Stormtroopers were in attendance, and we got to see some prerendered footage of them in action, neither Star Wars character was included in our hands-on demo of the game, so we'll have to wait to indulge in some Samurai-vs-Sith action.
New York native Dan Ackerman, a former radio DJ turned journalist, has written about technology and music for publications including Spin, Blender, The Hollywood Reporter, and USA Today. He hosts the weekly Digital City podcast and the New York edition of Editors' Office Hours. Dan's new album, Tales Out of Night School, is available now. E-mail Dan.

http://en.wikipedia.org/wiki/Soul_Edge
Additionally, the "Soul series" has always used Namco's Tekken game engine as a base and both games have served as testing grounds which incorporate new graphic technology and game dynamic based on fan feedback. For example, "wall jumping" first appeared in Soul Calibur II as a means of escape when cornered, and then was added to Tekken 5 the following year due to its popularity.
The only character to appear in both games in Yoshimitsu who has been in every Tekken game and first appeared as a bonus character in Soulcalibur, and remains part of the "Soul series" in both Soulcalibur II, and Soulcalibur III.
The arcade release dates better demonstrates Namco's development schedules.
1994: Tekken
1995: Tekken 2, Soul Edge version 1.0
1996: Soul Edge version 2.0, Tekken 3
1998: Soul Calibur
1999: Tekken Tag Tournament
2001: Tekken 4
2003: Soul Calibur II
2004: Tekken 5
2005: Soul Calibur III, Tekken 5 DR (Dark Resurrection)
2007: Tekken 6
2008: Soul Calibur IV