Moon rockets were introduced into H&H in Supplement III: Better Quality.
We don't actually see any of Spencer Steel on this whole page, but we do get a glimpse of a villain hideout, accessible through a garage with a sound-activated door. In the private office is a secret door that leads to an elevator that does down to an underground laboratory (stairs go back up, presumedly to a floor in between). There's a nice amount of detail to the lab here, handy for an Editor looking to describe one on the fly.
Hypnosis is currently a 1st level power for Superheroes. But does it need to be a skill that everyone has a chance to use? Though, if Kromo is a supervillain, maybe that explains his goofy name...
(Scans courtesy of Digital Comic Museum)