In Chapter 3, Section 3 'Rose's Room - Spaced Out', one of the mandatory portals that players must travel through to progress contains two tall pillow towers directly ahead. One of the pillow towers contains a satellite dish at the very top and can be interacted with by a player. The satellite dish itself can be freely aimed towards the starry sky scanning for hidden signals that players can listen to. There are four audio signals that can be found and two of them are actually the voice of the game's director Josef Fares. The two particular voice clips of Fares were ripped directly from his infamous appearance at The Game Awards 2017 where he notoriously said "Fuck the Oscars". Finding all four signals earns players an achievement/trophy 'Faraway Frequencies' with the description, "The truth was out there all along!"

In Chapter 3 Section 1 'Rose's Room - Pillow Fort', players will come across a pillow alcove towards the left of the main path that features two action figures with interactive buttons. The action figures themselves are actually the two playable protagonists Leo & Vincent from Hazelight Studios' other project A Way Out. If both players stomp both buttons at the same time, a unique dialogue cutscene between Leo & Vincent will play. After the dialogue, an achievement/trophy 'Plastic Prison Breakers' is earned with the description, "They had no way out."

In Chapter 4 'Cuckoo Clock', during the level section 'Gates of Time' players can find a river boat. If players get in the boat and ride along the track, they will come across a house on a pier. If a player enters this house inside they will find numerous blue pots with white stripes & large crates. The pots can be broken and inside them are green Rupees. This room is a reference to the Guard House of Castle Town from The Legend of Zelda: Ocarina of Time, a location infamously used to easily farm Rupees. An Achievement/Trophy is also unlocked: 'Force Triangulated', with the description, "Breathe some wind into your ocarina, my skyward princess".