Yes
Parallel Worlds was created on 2007-04-09.
No
No. While it's entirely possible there could be other worlds where the laws of physics are different than how we have interpreted them on Earth, it is impossible there are 2 dimensional worlds inhabited by animated characters.
go to ultimateguitar.com and type in parallel worlds it should come up
Parallel Worlds Parallel Lives - 2007 was released on: UK: 26 November 2007 (TV premiere) USA: 21 October 2008
Nova - 1974 Parallel Worlds Parallel Lives 36-3 was released on: USA: 21 October 2008
No. The term astral projection refers to a person's spirit traveling outside their body. The animated worlds you see in cartoons are simply drawings that came from ideas.
Those are two completely unrelated concepts.
You can find help from many sources: 1. Answers on the Answers website 2. 100 Doors Parallel Worlds Facebook page 3. Youtube videos: Search for 100 Doors Parallel Worlds walkthrough 4. Websites such as those in the related link.
There are many spirits out there in our universe including angels & devils. So yeah spirits can manifest themselves through the animated world.
The Legend of Zelda: Parallel Worlds is a fan-created Zelda game, so it does not have a rating. Only official video games made by game companies are given ratings.
It's called Pocahontas - The Girl Who Lived In Two Worlds