In this Christmas anthology episode, Bart goes after Krusty Claus, Lisa dreams of Christmas in World War II Germany, Martha Stewart teaches Marge the true meaning of Christmas, and KatyPerry appears with Muppet Simpsons.
* ActionMom: Marge in Lisa's story. She is called to serve in the US Army during World War II instead of Homer, and successfully kills Hitler.
* AllJustADream: All four stories of this episode.
* BeCarefulWhatYouWishFor: When Bart wished Mr. Burns wouldn't sing "12 Days of Christmas", Burns said he'd sing the "original" version with ''[[UpToEleven 39]]'' days.
* DirtyCoward: When Marge shows up at the movie theater to kill Hitler, he rips off his mustache and puts it on another man's face as a failed attempt to avoid being killed.
* GettingCrapPastTheRadar: TheStinger, wherein a muppet version of Moe tries to kiss Katie Perry.
-->'''Moe:''' I'll just kiss your belly button! (''promptly kisses her "belly button"'')\\
'''Katy Perry:''' That's ''not'' my belly button! (''beat'') But I didn't say stop...
* NoBudget: So much was spent to have KatyPerry appear there was only one hound to answer Mr. Burns' usual "release the hounds" command. [[invoked]]
* ShoutOut: Mr. Burns decided to visit the Simpsons because he was visited by [[YetAnotherChristmasCarol three spirits]].
* TemptingFate: When the Simpsons were about to depart for Hawaii, Homer said nothing would stop them. Mr. Burns then showed up.