If you're wondering, Chapter 6 was worked into Chapter 5. Mission 1 took place outside the Preppies' beach clubhouse, and rather creepily, mission 3 would've taken place in the Old Bullworth Vale graveyard. Only 2 missions are known to exist for it, mission 1, and mission 3, while unplayable, they give us hints to where the chapter took place. In the games' files, there's a 7th chapter which was deleted entirely. IIRC it was IGN who hinted that Dr Crabblesnitch was going to be a villian, instead of a clueless headmaster. The original design of the Academy was different, at least 3 desgins, coupled with the fact there's 3 versions of Final Showdown's soundtrack, implies Final Showdown was almost certainly tweaked with more than most other missions. Jimmy may have died in 'Showdown at the Plant' as there's audio files for Edgar mocking Jimmy for 'taking an acid bath' and 'burns doesn't it', implying Edgar would've pushed Jimmy into the acid pit they were fighting over, so it shows death wasn't out of Rockstar's ideas.

Bully scholarship edition gary