History VideoGame / Duolingo

* SarcasmMode: ''Nearly every character'' in the modern version seems to be an expert in this.

* IronicEcho: In the story "Look at the Whales", Eddy and another mother, Sarah, discuss the frustration of seeing their kids focused on their phones while on a boat trip to see the whales, with Eddy noting that "kids these days are never interested in the most important things!"... only for two large whales to show up right before them, which Junior and Sarah's daughter ''actually have noticed'', but failed to get their parents' attention. Junior then remarks "adults these days are never interested in the most important things!"

** The story "Save the Animals!" have the students at the school Oscar teaches threatening to splash paint onto the fur coat Oscar's wearing, as a demonstration to stop animal cruelty. He gets away with it by saying it's fake fur.

*** "Obviously, having the flu is better than going with you."

*** "I'm glad you granted me a promotion, but what about my company car?"

** "Lin's Towing Service" is an advertisement by Lin about her new business. The usual kicker? The business isn't open in the morning or afternoon due to her usual sleeping habits, she can arrive ''whenever she wants'' (even if it's too late), and she only responds when her phone has juice and is nearby!

* DemographicallyInappropiateHumour: The story, "I Want to Be Like You," has Junior declaring he wants to be a lion tamer under the assumption that that's what his dad does for a living. His reasoning for believing this? He found a [[HellBentForLeather leather suit]] and [[WhipOfDominance whip]] in Eddy's closet.

* GettingCrapPastTheRadar: The story, "I Want to Be Like You," has Junior declaring he wants to be a lion tamer under the assumption that that's what his dad does for a living. His reasoning for believing this? He found a [[HellBentForLeather leather suit]] and [[WhipOfDominance whip]] in Eddy's closet.

* GettingCrapPastTheRadar: The story, "I Want to Be Like You," has Junior declaring he wants to be a lion tamer under the assumption that that's what Eddie does for a living. His reasoning for believing this? He found a [[HellBentForLeather leather suit]] and [[WhipOfDominance whip]] in Eddie's closet.

* SureLetsGoWithThat: In "I Want to Be Like You", Eddie's young son finds a whip and leather clothing in a cupboard, and an embarrassed Eddie goes along with Junior's guess that it's lion taming equipment to avoid having to explain what he really uses it for.

** "Cake to Deliver" has Vikram and Eddy delivering a cake to a wedding of Vikram's cousin. Suddenly a tire goes flat and Vikram has to spend over an hour trying to fix it... while Eddy waits to the point of exhaustion, that he just takes the cake and eat it.

* SuddenContestFormatChange: Some questions, both in lessons and stories, may require outside knowledge (typically geographical) about places that speak the language you're learning, or general implications based on the given plot.

* ArtisticLicenseBiology: The Finnish course asks the user to translate "Tämä pupu on sininen" - "This bunny is blue".

* HistoryRepeats / HorribleHoneymoon: "The Flat Tire" has Vikram and Priti accidentally recreating the night of their honeymoon together. Both times, while they were coming home from a date, their car broke down for whatever reason (at present it was because of a flat tire), and so they had to walk back. ''A long way.'' Vikram alone forgot his keys, so he had to use the window to get back inside the house. This time, ''both'' of them are [[AllForNothing locked out of the house]].

* HistoryRepeats / HorribleHoneymoon: "The Flat Tire" has Vikram and Priti accidentally recreating the night of their honeymoon together. Both times, while they were coming home from a date, their car broke down for whatever reason (at present it was because of a flat tire), and so they had to walk back. A long way. Vikram alone forgot his keys, so he had to use the window to get back inside the house. This time, ''both'' of them are locked out of the house.

* HistoryRepeats / HorribleHoneymoon: "The Flat Tire" has Vikram and Priti accidentally recreating the night of their honeymoon together. Both times, while they were coming home from a date, their car broke down for whatever reason (at present it was because of a flat tire), and so they had to walk back. Vikram alone forgot his keys, so he had to use the window to get back inside the house. This time, ''both'' of them are locked out of the house.

* HereWeGoAgain / HorribleHoneymoon: "The Flat Tire" has Vikram and Priti accidentally recreating the night of their honeymoon together. Both times, while they were coming home from a date, their car broke down for whatever reason (at present it was because of a flat tire), and so they had to walk back. Vikram alone forgot his keys, so he had to use the window to get back inside the house. This time, ''both'' of them are locked out of the house.