I'm fairly convinced now that the cute trio of the Moon Crawler, Moon Prospector and Scramble Bug are the SWORD pin-ups when it comes to models! Imai obviously loved 'em and Aoshima's Moonbase re-issue is no different. The hard-working moon vehicles appear alongside all the stalwarts of the UFO fleet and this maybe the closest we ever get to the fabled Imai Project sword Moonbase Kit (which like its Century 21 parent may not even exist). The Aoshima kit comes with a whole sheaf of great Japanese instructions, but I've just posted those for the Crawler, Prospector and Bug - wonder if they translate as the same names? Alas, I don't own this kit (pictures from various kit stockists' sites) so if anyone is lucky enough to own one, any chance of close-ups of our little SWORD pals!
PS. I used to think Konami did a similar gang of three but I've never found any.