Bally: Dr. Dude

       Game Version L-2 (System 11)

U26 :    Checksum: EAE2
U27 :    Checksum: 20B6

       If your Dr. Dude is a WPC model (blue bottom arch),
       use this U6 instead of U26/U27.

       Game Version P-7 (WPC)

U6  :    Checksum: FBC8

       Sound Version L-1  (Common to both versions)

U4  :    Checksum: 8C5C

       Speech Version L-1  (Common to both versions)

U19 :    Checksum: 065A
U20 :    Checksum: ED58