In addition to the regular command icons included in the icon interface of many Sierra games (Walk, Look, Take/Use and Talk), there are "Smell" and "Taste" icons. Using these icons on various creatures and objects Roger encounters throughout the game may get funny messages, but they are not necessary to win the game. These additional icons are included also in Space Quest IV: Roger Wilco and the Time Rippers (1991).
Madonna sometimes performs at the bar in Ulence Flats; one of the alternating bands is a parody of ZZ Top, playing "Sharp Dressed Man"; another band is a parody of John Belushi and Dan Aykroyd, as the Blues Brothers.
The name of the store "Droids-B-Us" is a parody on the toy store chain "Toys 'R' Us". It was first named "Droids-R-Us", but "Toys 'R' Us" sued Sierra for its use of the similar name without permission. Thus the name of the store was changed to "Droids-B-Us". The logo of "Droids-B-Us" resembles the logo of "Toys 'R' Us", and on the left side of the building there is a picture of "Gerry Giraffazoid" - a parody of Geoffrey Giraffe, the "Toys 'R' Us"'s mascot.
The name of the planet Kerona is based on a Mexican beer called Corona, the favorite beverage of the game designers Mark Crowe and Scott Murphy back in 1986.
In the end, the leader of Xenon who congratulates Roger for his outstanding bravery and gives him the golden mop, is King Graham - the protagonist of "King's Quest" series.