Yet another undumped prototype has found its way to eBay. This time around it is a prototype of Tengen’s Gauntlet.
The seller notes that they accidentally stumbled on the prototype after finding it in a bad Elevator Action cartridge which had a ripped label. They were able to get it to work after putting it in a cartridge and firing it up on an NES top loader.
The current asking price for the undumped prototype is $4,499.99.