Pengo Prototype – Best Electronics

Here’s a Pengo Prototype.  I believe this is one of the runs from Best Electronics, due to the blue warranty sticker (usually found on carts sold by Best).  Without looking inside (this is not mine), there is no way to tell if it is a repro/copy (fake) or an origianal rom.  I have read about Best making copies of protos, so I would bet that is what this is.