Deleted Scene

The Deleted Scene is a moment in Nerf: The Incognito. It is considered an after-scene because it plays after the credits roll.

Story
Cassidy looks over the cliff with the ghost of Billy hovering over him. Billy glares at the sombre Cassidy who continues to stare into the distance. Before leaving, Lindheimer reminds Billy of the relation before stabbing the ghost of Billy with the Golden Staff:

CASSIDY: I’m not just an agent.

Cassidy stabs the ghost of Billy with the Golden Staff.

CASSIDY: I was also a friend...

Interpretation
Essentially, Billy’s ghost is Cassidy’s memory and feeling of paranoia. He manages to recover from the trauma and move on.

This is considered one of the darknest scenes ever.