Information:  - The PlayStation 2 (abbreviated as PS2) is a home video game console that was developed by Sony Computer Entertainment. It is the successor to the PlayStation, and is the second installment in the PlayStation lineup of consoles. It was released on March 4, 2000 in Japan, October 26, 2000 in North America, November 24, 2000 in Europe, and November 17, 2000 in Australia. It competed with Sega's Dreamcast, Microsoft's Xbox, and Nintendo's GameCube in the sixth generation of video game consoles.  - The King of Fighters '99: Millennium Battle is a head-to-head fighting game by SNK released for the Neo Geo arcade and home platform. It is the sixth installment in the companys "The King of Fighters" series. The game was ported to the Neo-Geo CD and the PlayStation as the final "KOF" game released for both platforms. A Dreamcast and Windows version was also released under the title The King of Fighters '99 Evolution in which the stages look exactly the same as compared with the arcade counterpart only to be exclusively remodeled into 3D. That version was released both in Japan and North America. Both the Neo Geo and Dreamcast versions are included in "The Kings of Fighters NESTS Hen" compilation released for the PlayStation 2 in Japan. The game introduces several changes to the established "KOF" format, as well as a new story arc that would later be dubbed the "NESTS Chronicles".  - The is a home video game console released by Sega on November 27, 1998 in Japan, September 9, 1999 in North America, and October 14, 1999 in Europe. It was the first in the sixth generation of video game consoles, preceding Sony's PlayStation 2, Nintendo's GameCube and Microsoft's Xbox. The Dreamcast was Sega's final home console, marking the end of the company's 18 years in the console market.  - The Fallen Angels (  Daraku Tenshi ) is a 1998 2D versus fighting arcade game developed by the Steel Hearts development team and published by Psikyo . It is Psikyo 's second attempt in the 2D versus fighting genre after Battle K - Road . Information about the game 's development and fate are scarce , though it is widely reported that it was released without being completely developed . The sprites for 4 unplayable characters have been found in the ROMs of the game . The developers of the game then reportedly moved back to SNK , supported by the observation that many of the characters bear striking resemblances to fighters that later appeared in SNK 's The King of Fighters series and Garou : Mark of the Wolves . Game director Mitsuo Kodama later became a designer on some SNK titles , including The King of Fighters ' 99 , and has been a founding and active member of K2 LLC.    What is the relationship between 'the fallen angels ' and 'fighting game'?
genre