Well I don't really wanna post this in the other thread since this is a discussion about the 3D aspect to the game.

You can view the youtube video.

Think about the world actually being flat, Like a boxed in room with 4 walls.
The top of the wall is above ground, everything else in the wall is underground.
SO it's giant open box, when you hit the edge of the world it will do a sort of paper mario rotation, the camera and player will flip around to the other side.
This was an idea I had to make use of the 3D more. :]

I'm using Google's Sketch Up to do the modeling.
The black outlines are a part of the program and wont be in game.



It's blurry because this is not a screen shot of in game this is just what I have made in the editor so it looks like in-game kind of.

This showcases the lanes.
The player moves in the largest lane, anything on that lane has collision.
The two back lines are for background shapes and objects.
2D grass will be placed on the front line and the second line.