The Master Sith
Lucasfilm owns Darth Vader and Starwars but they do not own Darth Slider.
Warped Universe
This begins in Darth Vader's point of view:
"Vader, I have very bad news for you, Master Sidious has an apprentice that he is sending to kill you."
"Let him come if he wishes but there won't be anything left of him if he does come. I swear that Darth Sidious is the worst sith lord I have ever heard of."
"Vader, he turned you to the dark side, how can he be a horrible sith lord if he converted you."
"Fett you know nothing of the sith, so don't even talk to me about the sith."
Suddenly out of the blue Bobba Fett pulls out a red triple sided lightsaber. Darth Vader uses the force to crush Bobba Fett's mask and realizes that this is not Fett, it is Darth Slider.
"I tricked you Lord Vader."
"So be it sith."
Lightsabers crash again and again, but Darth Slider seems to be outmatching Vader by a lot. Out of the blue Darth Slider uses a mega force push and Vader crashes into the wall and falls in a heap of garbage.
"Vader, ha, ha, ha, ha, time for me to be the Master Sith."
"You won't win!"
"Vader don't be silly, you're stuck in a mess of crud."
"Well see about that."
Then, out of no where Darth Slider is swept off of the ground and thrown to the other side of the room.
"Boba Fett, it's about time."
"Sorry Vader the emperor captured me and I had to escape, but I am here now."
"Fett could you get me out of this mess."
Boba Fett fires three missiles at the wall where Darth Slider is and with a yelp Darth Slider crashes to the ground. His body was never seen again. Boba Fett helps Darth Vader get free, and they run off to tackle the emperor.
To be continued…………