''Return to the Forbidden Planet'' is a JukeboxMusical by Bob Carlton, based on the 1956 film ''Film/ForbiddenPlanet'' (which was itself inspired by Shakespeare's ''Theatre/TheTempest'').
In this case the jukebox is full of '50s rock, including songs such as "Good Vibrations", "Great Balls of Fire", "Shake, Rattle, & Roll", plus of course "The Monster Mash".
!!In addition to tropes inherited from the movie, the musical provides examples of:
* AppliedPhlebotinum: The X Factor drug, which creates planets and monsters when necessary but not consciously.
* AudienceParticipation: The audience is required to help out when the [[ReversePolarity polarity is reversed]].
* BeAWhoreToGetYourMan: [[MadScientistsBeautifulDaughter Miranda]] tries this on Captain Tempest after he sings about how she's much too young for him. "[[SheIsAllGrownUp Good morrow, big boy!]]" It doesn't work quite the way she wants it - on the one hand, it ''does'' get the Captain's attention, but the robot Ariel has to remind her that it was her sweetness and charm that attracted the Captain to her in the first place, not a frou-frou frock.
* GratuitousIambicPentameter: ''Every spoken line in the musical'' is iambic pentameter, with many passages lifted (with modifications) from Shakespeare's plays.
** Referenced in the play itself, with the lines "''Iambic's functioning; Pentameters locked in''"
* KnightTemplar: As Doctor Propsero wails, "I'm just a soul whose intentions are good - oh Lord, please don't make me be misunderstood."
* LoveTriangle: Cookie TheWoobie, Miranda TheIngenue, and Captain Tempest TheAce.
* MadScientist: Doctor Prospero, whose own wife recognized the potential horror of his creations and sent him into outer space for the greater good.
* MeaningfulName: The names of many main characters are altered for the musical to fit more with Shakespeare's ''The Tempest'': Captain Tempest, Doctor Prospero, Miranda, Ariel the Robot, with the exception of Cookie and Gloria (G-L-O-R-I-A).
** Cookie's name isn't taken from The Tempest, but it's still an example of this trope. He's the cook.
** Arguably, the Ariel analogue in the movie wasn't the robot, it was the id monster. The Robot in the movie was a closer analogue to Caliban.
* RecycledInSpace: ''Theatre/TheTempest'' [-IN SPACE!-] [-[[TheMusical THE MUSICAL!]]-]
* TheReveal: An entire song is given over to the discovery that [[spoiler: the seductive and dangerous Science Officer is none other than Gloria, the wife of Doctor Prospero, who sent him into space years ago (with their daughter, accidentally) to save the world from his madness]]. Other revelations (sadly not sung) include the true effects of the X Factor, and the nature of the planet D'Illyria.
* RetCon: the backstory for the mad scientist and his daughter is amended significantly, new characters are added, and everyone's names are changed.
* ReversePolarity: Naturally.
* SensorSuspense: During the third visit from the invisible monster. Radar showed ''something'' approaching, but no one can see it...
* SmiteMeOhMightySmiter: "Blow winds and crack your cheeks! Rage, blow... strike flat the thick rotundity of this world! [[ArsonMurderAndJaywalking I am a dad more sinned against than sinning]]."
* ThermalDissonance: The Krell's machine room doors.
* YourMindMakesItReal: Doctor Prospero's masterpiece, the X Factor drug, can make matter out of thoughts - unfortunately, this includes the Id, the repressed base desires of every human being. In an extension of this, it is revealed at the end that the entire ''planet'' of D'Illyria was generated from Doctor Prospero's Super-Ego, thus the planet destroys itself when he does.