Earthbound is one of the most interesting prototypes of all time. It sold for $1000 on Ebay. It contains a translated copy of Earthbound. Some people think that Earthbound proto is fake yet I do not know why.
This proto is of Exerion 2. It is owned by Dreamtr.
This proto of F117A Stealth Fighter sold for only about $50 on Ebay. That's cheap for a proto cart. The graphics were all scrambled up and I think Niels of The NES Pit owns it.
The next cart is Faria. I really do not know much about it.
Theres a small label with the words Final Fight written on it.
Next we have Gargoyles Quest 2. The label apears to be just a ripped piece of paper slapped on the cart itself.
Here we have another Activision game. The label is similar to the label on the game The Three Stooges.
The only thing known about Goal 2 is that it is owned by Dreamtr.
Here we have Grid Grabber version 2.0 by Elite Systems. There appears to be another label underneath the white one, yet it was ripped off. I do not think Grid Grabber was released in the US.
Home Alone 2. I really do not know much about it. I think it is the same as the released version. I wonder if it is any better than the Home Alone 2 board game. I don't think it was all that good.
I believe NES God owns this game. It is a proto of Hillsfar.