good animation but...
I very much liked the style and flow of the animation, as well as the character design. However, I disliked the storyline and voices. The german accents came off as cheesy. The characters sounded as though they were in a Speed Racer cartoon, since they talked really fast to explain a plot that wasn't really coherant to start with.
Taking into consideration the purpose of this flash(for some contest on Deviantart), I don't see why there couldn't have been a a wall of text(like in Star Wars), at the beginning, or perhaps a narrator(like in Speed Racer) to fill us in on the gaps.
On a final note, I was wondering if you read any "Myth" books by Robert Aspirin. As they also included a world with multiple dimensions. Or perhaps some of the Gorean books(which also include dimensional travel).