Here is another vid of this game showing a small shooter lane mounted flipper to deflect the ball into your game instead of it going to the top of all three games.
Also notice that the upper flippers on your playfield belong to the other player and his to you so you can flip the ball back to you when it is at the top of the games.
I am doubting that there is any kind of central CPU controlling all three games at once. Or is there? Seems to me that if too many balls end up draining on one playfield it would cause ball trough problems.
How about a Spanish translator? Anyone?