Rage of the Dragons / レイジ・オブ・ザ・ドラゴンズ (Neo-Geo - Noise Factory, Evoga - 2002)
Chara-design, in-game illustrations, logo: Mario Vargas
http://mrvo.deviantart.com/
Cover art: Bunshichirō Ōma / 逢麻文七郎, a freelance artist who worked on a few games such as Power Instinct Matrimelee and Trap Gunner. Very active member of the dōjin scene, he even produced a Rage of the Dragons dōjin years ago.
https://www.doujinshi.org/browse/author/1710/Ouma-Bunshichirou/
According to Double Dragon creator Yoshihisa Kishimoto, Evoga didn't have the rights to use the DD licence:
"I personally had nothing to do with Rage of the Dragons and neither did the license holders," says Kishimoto. "So, technically, it's illegal. But Million is a small company and it doesn't have the finances necessary to stop people from creating Double Dragon spin-offs."
On a related note, although the Mexican company Evoga closed its doors in 2004, a new website made its appearance last years and is still online:
http://www.evogae.com/
See also:
Double Dragon flyer by Kōji Ogata / 緒方コウジ
http://videogamesdensetsu.tumblr.com/post/142744222835/double-dragon-%E3%83%80%E3%83%96%E3%83%AB%E3%83%89%E3%83%A9%E3%82%B4%E3%83%B3-arcade-technos-1987
Sources:
http://mrvo.deviantart.com/art/Game-Illustration-process-63682742
http://mrvo.deviantart.com/art/RAGE-OF-THE-DRAGONS-SKETCHES-58178082
http://mrvo.deviantart.com/art/in-game-illustration-process-58722917
Yoshihisa Kishimoto on ROTD:
http://www.polygon.com/2012/10/12/3495124/the-man-who-created-double-dragon
ROTD dōjin (NSFW)
https://hitomi.la/galleries/145063.html
http://www.mmcafe.com/cgi-bin/forums/bbs/messages/13161.shtml#52574
