Walkthroughs - Monster RPG 2 - Long Shot
Visiting the various towns and inhabited areas, you'll now find several people suggesting that you need a ship to go to the moon. Gunnar is the most helpful (he's still at the docks, guarding the submarine), telling you that a farmer he knows has built a space craft. Well, there is only one farmer we know of, right? So head on over to Old Flyer's farm.