Gaiapolis.... I feel like I've seen the name here and there over the years. Made me curious so I did a bit of reading and watched some footage of both the arcade game along with the NES bootleg. It reminds me a little of Capcom's Dungeons & Dragons arcade games. Looks like a fun adventure that made some waves in the Japanese arcade scene back in those heady, early 90's. The bootleg's music kind of grated on me after a bit though - but then that's the nature of these bootlegs lol.
Ah well, it was a nice bit of nostalgia. Nothing ground breaking or particularly compelling, it is a 90's game based manga after all, and the story likely has as much depth as a puddle of water, but the artwork is solid and Elaine has a nice butt. What more can you ask for?
... probably a lot, but this is all we're getting. Cheers on the translation/cleaning efforts.