In the comic book that is part of the game's manual, Roger Wilco is shown as having blond hair, however in the game he has brown hair.
Sludge Vohual is of course a spoof of Darth Vader from Star Wars, and the monkey guards are a spoof of Planet of the Apes.
When you select About SQ2 from the Sierra menu after you die, you'll get a message that says
We hope you're not looking for someone to blame just because you diedrather than the usual message.
Budget re-releases of the game had a copy of the in-box comic in black and white instead of the colour original (well, it was a *budget* re-release!)
The back of the (original release) box said that Vohaul is "...madder than a drenched Astrochicken". An intriguing phrase to use, as Astro Chicken hadn’t yet been seen in either of the games - it would make it's debut appearance in 'Space Quest III'.
For some unexplained reason, Sludge Vohaul's name has mysteriously changed from Slash Vohaul in the first game. (It's not really known why - maybe Sierra thought "Slash" could be taken to sound a little rude for a family game?) Either way, it would remain as Sludge Vohaul for the rest of the series.
In the decontamination area (this is where you change your clothes at the start of the game) open your locker. In your locker there are two objects you can take but there's also this joke. Type:
When you're inside Vohaul's asteroid, go to the bathroom on the 4th floor and enter the booth that isn't occupied. Close the door and type:
One little quirk: Space Quest 2 is the only Space Quest where you do not use Buckazoids (the Space Quest intergalactic currency).
ExtrasThe box included a comic book named "Space Piston" to acquaint newcomers to Roger Wilco, the ex-janitor which became a hero in Space Quest.
GraphicsWhile it is mentioned on the box that VGA and MCGA are "supported" (they were introduced the same year as this game), they are not "used". The game still used AGI's 16 color low-res mode.
ReferencesThe game contains more allusions to the Larry series. When Roger is caught outside the swamp and thrown into a cage during his unconsciousness he dreams about being a character named Larry and having some incidents with women.
Contributed by Olivier Masse (421) on May 22, 1999. [revised by : mailmanppa (1176)]. -- edit trivia