I recently downloaded a ROM of this game, and it looks pretty cool. I wouldn't mind owning the actual game. I really like games that have more than one genre (Side Scrolling/First Person Shooting/etc), and the music in this game is awesome. Plus the main protagonist, Moby is pretty good lookin'. 



And based on my research, the story (or Planninng, Scenario writing , Direction & 2D Graphic design) was by Shouichi Yoshikawa, who uses the alias "ANGELA". His website is here. He/she also was the one who translated it into english! He also did Planninng, Scenario writing , Direction & 2D Graphic design for "Golgo 13: The 1st Chapter:Twilight of The God", which I believe is the japanese version of "Top Secret Episode", which was also translated into english by Yoshikawa-san, according to his/her site (I think it's their site at least!). Some of the other games he/she has worked on include:

Block Gal
Conflict
Golgo 13 II:The Mystery of Icarus
Tekkaman Blade
and some of the games in the "Bonk's Adventure" series. It also appears he worked on something called "Black Manta 2", which might be a sequel to Wrath Of The Black Manta, and I can't find any information other than his site. There's a chance it was most likely never released. I could email him/her and ask. He/she has responded to my other two emails. Anyway, Vazolder looks like it would've made a cool anime.

Wait, is this a Famicom-only game? Now you have me interested.