Prolific Ben Fry now gives us deconstructulator (he was mentioned last in the blog concerning proce55ing). It's a Java emulation of a Nintendo game, augmented with a graphic display of the internal graphic structures that support the display. In Nintendo's case, it's a simple sprite system. As game play progresses, you can watch the set of sprites change to accommodate the needs of the game.
It's part of a series Ben is working on about visualizing software. Check out his home page for more.