This is modified “Ballance” game released by Alternativa3D team in november, with FLARToolkit used to control camera instead of mouse. Unfortunately, due to GPL2 section 2 clause B I cannot distribute stuff including both FLARToolkit and Alternativa3D for free, so no SWF for you to play with atm, sorry. But, if anyone is interested in sponsorship to enable this thing to go online, contact me.
On the technical side (aka “how the hell was it done”), bad news are that neither object transformation matrix nor camera projection matrix cannot be directly set in Alternativa3D, so we have to resort to mind-f@#king tricks to get it working, and the result is only approximate match. Good news are that this approximation is, obviously, good enough and useable. An example of what has to be done to make it work can be found here (I believe my single AS file does not contain FLARToolkit, and so I can distribute it, under whatever license I want).