From Nookipedia, the Animal Crossing wiki
- The Room Sketch app in Happy Home Paradise uses the designing music from Happy Home Designer
- According to game design assistant Michiho Hayashi, the Tomato Juice Shirt in Doubutsu no Mori and Doubutsu no Mori+ was designed as a bloodstained shirt. Hayashi decided to call it "tomato juice" as a joke.
- K.K. Break (pictured) depicts a Aries Rocking Chair rocket flying into space.
- In New Horizons, placing down the Snapping Turtle causes it to appear without a tank or container. Interacting with the Snapping Turtle will cause it to hiss and snap its jaws.
- In New Leaf, due to how the Japanese language pronounces "L" and "R" words, Re-Tail's Japanese name, R. Parkers (R・パーカーズ R pākāzu?), is a pun on the word "alpaca" when pronounced as "L. Parkers".