Recreating the TOMY Waterful Basketball as a sealed tank where LT/RT (or A and L) pump streams, and the ball just drifts with the water, is a lovely kind of delayed aim — I kept thinking about those whoosh buttons and how nothing on the original was electronic. Glad the Lucky Number jam is baked into the scoring, with 7 unlocking the ABA ball and 21 dropping a second one into the tank. When both balls are in play, is the hard part usually keeping them from pinning each other against a wall, or is it still just reading the drift long enough to time a single pump?