The love child of Pong and Arkanoid, born in the mobile generation.
Chalk Ball by The Pill Tree challenges you to keep a ball/s bouncing along by drawing a chalk line for it to bounce off of. But chalk can be at a premium so it gets tough fast if you’re not economical and don’t have quick reflexes. Bouncing into objects changes all manner of dynamics; add chalk, shift gravity, multiply balls, speed things up, slow things down, etc. Plus there’s a bunch of missions and challenges to keep it fresh for hours of play.
A cheap download for Android and a perfect game for some Jedi training in spare moments.