These are the easter eggs in the Slendytubbies series.
A Voice Trumpet can be found in the south mountains playing a cover of the song "What's Up" by 4 Non Blondes. This is a reference to a video called "HEYYEYAAEYAAAEYAEYAA" (which is a scene from the video "Fabulous Secret Powers" by slackcircus).
- A dancing Rick Astley can be found in one of the mountains. "Never gonna give you up" will also play if the player comes close.
- There are some growls that can be heard randomly. When these growls are sped up, you can hear a voice saying any of these quotes:
- A dancing Rick Astley can also be found here hiding behind a filter. The music is not playing.
- The ambiance is actually Dipsy who is possibly talking to the player.