This version of the game is a combination of the original game and some Xtreme Legends features, including Legend Mode and Xtreme Mode. It does not include Edit Mode or Destiny Mode, but it does include the new items from Xtreme Legends. It includes gamepad support, allowing the user to use PlayStation 2 or Xbox 360-style controllers compatible with Windows.
The Windows version also has improved graphical features, such as real-time shadows.
Official system requirements Of Shin Sangoku Musou 4 Special For Windows
Processor: Pentium 4 1.6 GHz or above (2.6 GHz recommended)
Operating System: Windows XP or later
Memory (RAM): 256 MB Or Above (512 MB or more recommended)
4 GB of free Hard Disk Space
Video Card: 64 MB of memory or higher. (128 MB+ is recommended)
Source: Wikipedia, "Dynasty Warriors 5 Special", available under the CC-BY-SA License.