A new day in the game begins at 6am. If the player is playing when this happens, Isabelle will make an announcement telling everyone to get up, and a loading screen will come up. The game will then save, and teleport the player to their house.

Depending on the number of times the player presses the A button when listening to Resetti for the seventh time, different dialogues will be displayed.

If a male character is given a feminine piece of clothing, like a dress or skirt, his running animation will also change to be more feminine.

Normally, when the player decides to build a public works project, Isabelle will prevent the player from going to the beach while scouting out a potential site due to the instability of the sand there. However, if the player uses cheats or glitches to bring Isabelle to the beach and then talks to her, she will give them the option to state whether or not they want to start construction. Despite this, she will deny the request anyway if the player answers yes; however, she will not cite the quality of the ground, but rather will state that there is no available space. Depending on where they are standing, she will state that the proposed site is either too close to the ocean or too close to the cliff, statements which do not otherwise come up in normal gameplay. This dialogue implies that building public works projects on the beach was considered at one point in development.