Altough simple, that Avalanche game was kinda cool, and because of the way it was coded, I am certain it could have been even faster. All that would have needed to be done is code the falling balls the same way I coded arrows in xLIB xLIB Revolution. Now imagine with Axe :O (altough it would use your own method, though, yet would run 10x-30x faster).
You should check out some source code and the doc included with the downloads. It also includes example programs. Then feel free to ask question in the exploding Axe sub-forum (I say exploding because I don't recall any project ever hitting 700 posts in one single month before on Omnimaga