I'm playing through the games in the archive as I get time, and I'll use this post to record my impressions.
Genie Ball - Game mechanics are easy to understand. There's certainly an increase in difficulty when going from two balls to three balls. I wonder if you're destined for eventual failure because of the differences in ball speed or if there's some programming to guarantee that the balls will always reach your hand location at different times. I might do a TAS of this at some point to find out.