Space Quest/YMMV


 * Ear Worm: The theme tune, which crops up in at least a dozen variants throughout the series.
 * Nightmare Fuel:
 * Make Roger fall into Acid or Lava and get ready to change your pants.
 * The creepy appearance of the poor dudes in SQ 4 with all that headgear could scare some people too.
 * Squick: In Space Quest 6, how does Roger escape Stellar's body? Why, no other than by flashing his ship's headlight through a large zit on her nose, which then gets popped so that Roger shoots out in a dollop of pus.