i found what appears to be a demo cart at a thrift store with a bunch of other Atari games. has anyone seen a demo like this before? the front label doesn't match either version of Frogs and Flies in the AtariAge database. i tested it and it works. it seem to be the final version of the game, though i do not own a non-demo copy of the game to compare. i am a NES collector, not an Atari collector, so any information or conjecture on this cart would be appreciated.