Im pretty sure some items from the main vault vary. I was watching a pirates of the carribean vault opening on YouTube and the player got the pirates toy box, Tia Dama, pirate enemy (forgot what it's called) and something else.. But I unlocked Tia Dama and the pirate enemy in one of Jack Sparrows vaults.
Here are my questions:
1. Can you unlock a skybox without opening a main vault? If so do you know where?
2. Can you unlock different ground themes without power discs? I've been playing for 20+ hours, finished the incredibles story and half way through pirates but I still only have the basic theme for land/ground.