Wow, I spent a lot of time with this game when I was eight or so. Brings back the memories. I'm pretty sure my Atari 800 is still in my parents basement. Just need to find a TV I can hook it up to...
Same, but on the Apple II version. I remember making Rube Goldberg like pinball layouts where the ball would be guided through all sorts of paths and down to where you'd only have to hit it with the flipper every once in awhile.
Pinball Construction Set, Spy's Adventure in North America, Robot Odyssey. So many classics on the Apple II that were fun and educational.
I basically learned college level circuit design by playing Robot Odyssey as a child. For those curious, here's a part of a Let's Play trying to solve one of the earliest puzzles in the game:
