This game is a Classic Sierra Game which means that you can both move character with arrow keys and type in commands.
Space Quest is a series of six comic science fiction adventure games released between 1986 and 1995. The games follow the adventures of a hapless janitor named Roger Wilco as he campaigns through the galaxy for "truth, justice and really clean floors". Initially created for Sierra On-Line by Mark Crowe and Scott Murphy (who called themselves the "Two Guys from Andromeda"), the games parodied both science fiction properties such as Star Wars and Star Trek (the theme song itself is a parody of the Star Wars theme), as well as pop-culture phenomena from McDonald's to Microsoft.
Like the slogan goes... The Lost Chapter.