So this is potentially do-able
You'll just have to figure out the scripting towards paddles and such and launchers. Which are basically just moving objects based on key presses. Also will have to figure out how physical force commands work. I'm quite new to them. With the balls and barrels test, they didn't work at first because of the weight and friction was set by default too high. In this test I have both weight and friction levels set to 1 instead of the default 100 or more. You can play around with these to maybe get more desirable results. As you can see at the end of the video... if the friction is set to 1 the ball just keeps rolling.
You've given me some ideas... and it looks like all of the Fallout 4 in-game games are completely do-able. For a pinball sort of game I think you'll have to create objects that have scripts detecting for if the ball is at a very close proximity to determine if they have been hit. So they can flash, play sounds and give points. Very creative of you to ask about this time of mechanic!