Ingenious mechanism… Wish I could give it five stars, but it gets stuck. After the initial positioning of the bot, the level plays itself for what feels like way too long...and after waiting a long time to get to the bottom...the ball gets stuck! I think it would be more fun if there was a shorter staircase...and shorter time to wait. But then we wouldn't get to see that really cool fractal as it was meant to be seen.
I've tried many ball contraptions, & this design actually gets stuck the least! But I'll keep working at it thanks guys!