That one was in Treehouse IV.
The following games (listed chronologically by release date between 1991-2012) have been based on the popular TV series "The Simpsons": The Simpsons Arcade Game Bart vs. the Space Mutants Bart's House of Weirdness Bart Simpson's Escape from Camp Deadly Bart vs. the World Bart vs. the Juggernauts Bartman Meets Radioactive Man Bart's Nightmare The Itchy & Scratchy Game Krusty's Fun House Virtual Bart Itchy & Scratchy in Miniature Golf Madness Bart & the Beeanstalk The Simpsons: Cartoon Studio Virtual Springfield The Simpsons Bowling Night of the Living Treehouse of Horror The Simpsons Wrestling Road Rage The Simpsons Skateboarding Hit & Run The Simpsons Game Minutes To Meltdown Itchy and Scratchy Land The Simpsons Arcade Tapped Out
Hugo Simpson is supposedly the Siamese twin of Bart in Tree house of Horror VII. (But Bart doesn't really have a Siamese twin on the real show, just on that tree house of horror episode.)
Once you get Bart's Tree House at level 12 you'll unlock Bart.
If by "They" you mean Bart & Lisa, that would be Future-Drama
Treehouse of Horror XIVThe first episode of the 15th season.
It was Season 19's Treehouse of Horror XVIIIsegment E.T. Go Home
'Bart Wars' is not an episode of The Simpsons, it's a 112 minute DVD.
It was called "Do the bartman"
The Simpsons Bart's Nightmare - 1992 VG is rated/received certificates of: Australia:G
the simpsons, man
Bart
Bartman