I don't own this prototype but know the owner and I recently had the privilege of seeing this running. (shots taken with bad camera phone sorry!) On a dev board, this prototype runs but seems incomplete (poor/missing enemy AI etc.) The game is mentioned in an interview with the programmer Ed Margnin here: http://www.retrovideogamer.co.uk/index.php?topic=5241.0 "The next game was Spot Goes to Hollywood. That one I completely finished, including making last minute requested changes before submission to Nintendo. When I got back from a short well deserved vacation, I asked if it had been approved â€” â€œNo, we decided not to submit it.â€ They did sell the Sega Genesis version, but didnâ€™t think they could sell the minimums required for the Super Nintendo. I think they though they were saving money by cancelling it prior to approval, where I would earn a bonus. What they didnâ€™t realize, I was entitled to the payment anyway, in the event they cancelled it. Of course, we never saw any royalties, just the money we billed them during the development cycle."