The Tron Legacy soundtrack website is filled with easter eggs. View the source code to see an ascii image of Kevin Flynn. Type in “derezzed” to hear a 20 second sample from the soundtrack. Type in “missing” and “mcp” for sound bites from the two films. Type in “light” and you will be taken to a sight to play Circuit Cycles. Other keywords include “tron,” “daft,” “flynn,” and “encom.” There are probably many others, but that’s what we’ve found so far. The soundtrack is set for release on November 22nd.