From the publisher's blurb:
For the new 2D10 RPG, Extra Rules are simply that - a slew of potential mechanics and fun ideas to enhance your 2D10 game. In this one page, free pdf, find out how to spice up combat with some simple but helpful options. Or include magic points or will for stories filled with spellcasters and horrors beyond time and space. Use momentum to reward heroes who succeed wildly in their battle against evil. Add basic armor rules.
Again, it's one stinking page, and it's free.