Found 2 ratings (with comment) on this game

If unkle Skeeter wanted to design a vertical pinball game for the fairway at the county fair, this would be it.

The Pros:
I got to play this game in the corner of the VFW collection in Ann Arbor, MI. The game was hidden away in a corner/hallway and I walked by it a few times before I realized what it was. This game is fun! Another attempt at trying to make pinball more accessible for players that would not normally play pin, and a smaller footprint for ops who are counting their square footage and their coins. Politically incorrect depictions of moonshiners always crack me up!

The Cons:
Finding one. This game is fun, but it really belongs in a Chuck E. Cheese. Frustration factor can be high until you get the timing of the game and then, you get bored with it quickly. Not long in the lastability department, but entertaining for a game or 7.

The Takeaway:
Banzai Run never had it this good. Between pacing and learning how to aim vertically, this game is a hoot, but that's about it. Find one if you can. Enjoy a beer or two with friends while taking turns at it and then you can say you played it.

Another VERY RARE prototype machine.
This is a vertical physical pinball machine with four flippers.
Game play is similar to a "Time Machine" falling ball clock with four levels of ramp gravity fall.

Production run was 12 prototypes, but it is unknown how many survive to this day.
I seriously doubt Williams made the 100 samples that were stated in IDPB as the game on test locations did poorly.
Predominantly because the original prototype had four flipper buttons and balls had to keep track of the all the ball simultaneously when playing.
Players got frustrated too easily at the time.
The game prototypes were modified to use two buttons to simplify the game function.

The objective was simple.
Get as many of the 3/4" steel balls to the top of the mountain with the alpine guides using the various located tiered flippers as much as possible to score points.
The game continuously feeds balls from the lower paddle wheel into the game until the timer expires.
Artwork was very comic book "Rube Goldberg" style.
Sounds were very basic.
Another pinball oddity in terms of quality on the same level as the classic "Ice Cold Beer" (but this is an arcade game).
I would give it a "10" in terms of fun factor, but a "6" in terms of lastability.
Generally a game for a serious collector, not the average or new collector.
Most likely many have never even heard of this game.

Your best chance to play this machine is at a major Pinball Expo, as Mike Pacak tends to periodically bring his machine for others to enjoy.
The other two examples remain in private collections, although one has changed hands a couple of times.
I uploaded ACTUAL photos of the machine to PinSide, because the photo shown is the original $#@!ing control panel. I also fixed a number of the statistics.
Value is between $8-10k, if ever one came up for sale.
Get on the silver ball, PinSide.