This is how Danny vs. Kitty goes in Guys' Night Out (Danny Phantom Version).
[In the first scene of the episode, we see Danny flying up a building dodging some attacks that look like kisses. Then we see Kitty flying up the building attacking Danny]
Danny: Hey Kitty, you work alone now? Finally ditched that stupid...
[Then her shadow came out of nowhere and grabbed Danny and threw him at a bill board as if it were a sling shot]
[Danny looks at the man in the bill board]
Danny: Eh, take about Urban Blight.
[Kitty's shadow grabs Danny]
Danny: What do you want Kitty?!
Kitty: Relax Danny Relax, I'm just letting out some anger. Me and Johnny had a little fight. What do you do when you and that Ghostly Girl have a fight like that.
Danny: What?! We...We never...I-I mean.. We aren't...Look Kitty! You can go back to the Ghost Zone Willingly or I can make you go.
Kitty: Nice with that tough side dude. But don't worry, I'm going back for good.
Danny: And take your friend of darkness with you.
[The shadow growls at him and lets him go]
Kitty: See next time in the mortal world Danny. And thanks for the fight.
[Kitty and her shadow go back to the Ghost Zone and Danny zaps her Shadow. While Danny goes back home, we see Ember looking at Danny behind a water tower]
Ember: My turn.
[Ember takes a picture of Skulker out of her pocket, looks at it and crushes it]