Unlock Comix Zone without a Sonic Heroes save
Play or leave the various games open to amass a total running time of 30 hours in-game (all of the games count toward this total, so you don't need to keep just one open). Make sure the special emulator menu (R1) isn't showing, and if you need to stop for a while, exit out of the game to make sure your run time is saved. Once you've amassed 30 hours, the next time you enter the Games area from the main menu (not just exiting out of a game), it'll notify you that Comix Zone is now available.
Contributed By: Kulock