Piracy is no fun! It is illegal to copy and pirate video games under copyright law guidelines. If you believe this to be an error, clean your Legally-licensed Genuine Sonic the Hedgehog™ 2 cartridge. If this screen still appears, refer to the instruction manual. If you still get this error, report this counterfeit/defective cartridge to your local authorities, and buy a true licensed version of Sonic the Hedgehog™ 2 . Remember, only Doctor Robotnik pirates video games. Don't be a Doctor Robotnik!