PAX East attendees will have a chance to receive a free Mad Catz Arcade FightStick Tournament Edition keychain, which hides a 3mm hex key, perfect for modding one of Mad Catz's real Tournament Edition arcade stick.

All you need to do is locate Mark “MarkMan” Julio (pictured), Mad Catz's associate product manager and designer of the company's revered sticks, at the Boston expo. You'll like spot him showing off Mad Catz's new Super Street Fighter IV and Rock Band products. Keep in mind he only has 100 keychains, so find him quick!

Mad Catz is also running an online promotion this weekend where you can get 20% off Super Street Fighter IV FightStick Tournament Edition sticks and Fightpads (coupon code: "SUPERPAX"), and 30% off the company's Street Fighter IV, Marvel Vs Capcom 2, and Tatsunoko Vs Capcom Fightsticks and Fightpads (coupon code: "PAXEAST").