This is Dungeons & Dragons: Tower of Doom, a Capcom CPS2 arcade ROM cartridge (B board), tested and working as shown in the pictures.
The built-in battery has not been replaced, and CPS2 cartridges stop working once that battery dies. It worked normally when tested, but there's no way to know how much life the battery has left or whether it will still work by the time it arrives.
Because of this, please only purchase if you have the technical knowledge to replace the battery yourself.
