4-way scroller

#1 Yea, its actually pretty easily done right from the demo that shipped with TGB.

#2 Yes, if you can make art that is top-down.

#3 Sweet I beat David...

#4 What is top-down art and how do I make it?

#5 Top-down art is art that is viewed from a top-down perspective. It can be created in a number of ways. You can model and render it, hand-draw it and scan it, etc. The most accurate is rendering, though. If you have ever played a game like you noted, then you know what top-down art is. I would recommend downloading the demo of TGB and going through the tutorials. And then create stick-figure placeholder art to get an idea of how to do it. With the exception of 3D fakery (such as 2D isometric artwork), the engine isn't constrained by perspective.

#6 TGB = TXB?

#7 Either one can do 2D graphics. But TXB requires you to code in C# and uses the XNA framework, and can be portable to the XBox 360 with a Creator's Club account. TGB requires you to program in TorqueScript and is portable to the Mac and PC.