Toy Story 2 Walkthrough Level 11: Al's Penthouse 1/2

Part One of Level Eleven of the game 'Toy Story 2 Action Game: Buzz Lightyear To The Rescue' for PC. Oh boy. What can't you say about this level? First off, there are cannons in every room. Yes, EVERY room. The only way to shut them off is to find the large red button in the room. Find that and the cannon goes bye-bye. Second, there's a puzzle. Involving trains. I've spent over half an hour fiquring out this puzzle, and I can never remember how it's done. I apologise for taking so long with that! Be sure to check out Part Two!