Barting Over S14|E11
Bart sells his soul in the aptly titled Season Seven episode, Bart Sells His Soul
Sn15|Ep15 Rome-Old & Juli-Eh
No such episode called "Dead Bart" exists.
Bart Simpson is not a DVD or Blu-ray therefore he has no special features.
Episode 5
In the "Treehouse Of Horror" episode.
In no episode does Bart get a clone however he does get a double in the form of Simon Worsterfield when they switch places in the episode Double, Double, Boy in Trouble (Season 20 Episode 03)
no its fake
There are no "authors" when it comes to Bart Simpson. The writers give Bart purpose in whatever the episode's plot is about.
Bart the General is fifth episode of The Simpsons.
Episode 3, Season 20.
O Brother, Where Bart Thou