Join the fight and defend the world against Dr. Wily and the evil robot masters! Use this tin to begin your training in the Universal Fighting System and play your friends to become the ultimate universal fighter! The combat system employs a "progressive difficulty" mechanism, which means the more you do in a turn, the harder your later actions become. UFS is modular and works with other games in the system, so you can have those epic Mega Man or Proto Man vs. Street Fighter or Soul Calibur or Penny Arcade battles. Compatible with: Universal Fighting System: Street Fighter Universal Fighting System: Soul Calibur III Universal Fighting System: Soul Calibur IV Universal Fighting System: Darkstalkers Universal Fighting System: SNK Playmore Universal Fighting System: Penny Arcade