Arcs & Circles & Kill Cubes

Level 4 came to me in a flash in the middle of an unrelated conversation with my friend who doesn't even play video games. 
Arcs will progress to circles to rotating elements.  Writing custom sceneNodeAnimators in C++ will be trivial at this point, but figuring out the pipelining of animations from 3ds through maxscript into XML and then kyuplex will be new territory, and bordering on the beginnings of scripting. 
I intend to look into using irr::scene::IAnimatedMeshSceneNode and company first, but I have a feeling that may not behave the way I want. 
Anyway, I feel confident about my ability to continue this "evolving gameplay" mechanic for quite some time, as the lessons progress ++  ; )