Hey, Nice attempt for 3D ; I dunno what the gameplay is supposed to be in the end but I recommend you avoid the vectors polygons cause it will slow down fast when you will add more than one. Maybe in 3.0 its faster I cant say about the gain in vector performance.
Here my 2 current pseudo 3D tech demos.
http://www.stencyl.com/game/play/19351http://www.stencyl.com/game/play/18862Its not easy to get acceptable performance and details.
Keep up the good work anyway, Those 3d Vectors might end up being good. Its an approach I might retry someday, when the software is updated to 3.0 for free license.