Completion

Completion is a song from the Octo Expansion.

Description
This song is played in a cutscene where the Telephone assembles thangs into a giant blender, promising to transport Agent 8 and Cap'n Cuttlefish to the "promised land", when in reality it tricks them into stepping inside the blender to liquefy them.

In the Octotune, it's played right before Agent 3 Appears, and is merged with that song to create one music file called Completion.

Octo Expansion Tower Control Jingle
When riding the Tower in Octo Expansion, the jingle played is a rendition of this song similar to those of the Ranked Battle counterpart, based off ice cream truck jingles.