This is how The defeat of Von Nebula goes in My Little Pony: The Revenge of Von Nebula.
[Starlight finds Stringer]
Stringer: What took ya?
Starlight Glimmer: Sorry, Stringer. I got caught up in a fight with the Changelings.
[Stringer runs off while Starlight gets back up]
Starlight Glimmer: Knock me down all you want, Von Nebula, but I'm not gonna let some power crazed robot take my teacher away.
Twilight Sparkle: (with Von Nebula's voice) Sorry, but your precious teacher is no longer here.
Starlight Glimmer: I know she's still in there.
Twilight Sparkle: (with Von Nebula's voice) How can you tell?
Starlight Glimmer: She has the power to resist your control.
Twilight Sparkle: (with Von Nebula's voice) And an example of that is?
Starlight Glimmer: Twilight, use your free will.
Twilight Sparkle: (with Von Nebula's voice) What good will that do?
Starlight Glimmer: Twilight, I know you're in there. Break free!
Twilight Sparkle: [shakes her head] Starlight?
Starlight Glimmer: Get rid of the staff, Twilight!
Twilight Sparkle: How?
Starlight Glimmer: I don't know. Think of something!
[Twilight then has a brainwave]
Twilight Sparkle: Get out of me, Von Nebula!
[Twilight throws the Black Hole staff at the ground]
Starlight Glimmer: Good job.
[Von Nebula's spirit exits Twilight's body]
Von Nebula: Nothing can stop me now. Come.
[The Black Hole staff starts slowly moving towards Von Nebula]
Von Nebula: Yes.
[The Black Hole staff continues moving towards him when Thorax appears]
Thorax: Not so fast.
[Thorax grabs the staff]
Von Nebula: What?! No!
Thorax: Say, how do you like being trapped inside your own staff?
[Thorax aims the staff at Von Nebula]
Von Nebula: No, stop! You'll destroy us all!
[But Thorax ignores him and sucks him in]
Von Nebula: Nooo!
[Thorax locks it in a cocoon]