Here is the opened cart of Virtual Bowling. Note the number on it - VUE-(E) BA3A . That is the same number as Faceball, and it has 32k of battery backed SRAM, although neither VBowling nor Faceball use it (I'd assume that they put it there so it could be a universal Proto cart)
Here is the back of the proto cart
Here is a pic from the other side, showing the dip switches better.
Full shot of the back of the Virtual Bowling cart. I'm assuming that says Athena and V Bowling or something similar.
Here is a picture of the front of the proto cart (bottom of the board).
The debug screen.
Notes about this game:
In this prototype, when you get a turkey (3 strikes in a row), a turkey runs and splats into the screen and the girl says "Monkey!"