The game's data contains unused sprites for Faraway Town's enemies depicting them with various emotional effects. As Faraway Town characters can't be made to feel emotions in-battle in the final game, this implies that the restriction was implemented relatively late into development.

Within the game's code is a commented-out test string transcribing the Tragedy of Darth Plagueis the Wise, a monologue by Chancellor Sheev Palpatine from the 2005 film Star Wars: Episode III – Revenge of the Sith; the monologue previously became a popular copypasta in the late 2010s, midway through the game's development. By nature, this text cannot be seen in the normal course of play and is only visible through observing the game's data.

After leaving the Neighbor's house for the first time near the start of the game, a number between 1 and 13 known as the "WTF value" is generated in the game's code. This value functions similarly to the "fun value" in Undertale and decides the outcome of multiple events in the game. A full list of known WTF value events (as of February 5, 2021) can be found in the attached picture and source link.

If the WTF value generated is 13, an event near the end of the game Spoiler:will feature the hidden dialogue "I fucking love air conditioning." This is the only expletive in the game's script.