Perplexus Micro: Drakko

From the publisher's website:

The second in the new Perplexus Micro line! The clear egg houses a fierce dragon, whose body forms a twisting path for marble maze fun! Perplexus® Micro was designed to attract the attention of Perplexus fans, as well as draw in new players with its 3" size and smaller price. These collectible games are easy to pick up, but hard to put down!

There are 33 challenges to this 3D maze game.