What's a good Android game for quick reflex challenges during a commute?

Going Balls is a physics-based runner where players navigate a ball through increasingly tricky obstacle courses. For commuters seeking a quick reflex challenge, its core loop of short, distinct levels fits perfectly into brief intervals like a train ride or waiting in line. The game demands precise taps and tilts to avoid pitfalls, springs, and moving obstacles, providing a consistent test of hand-eye coordination. A standout feature is the 'Goalball' mini-game, a rapid-fire kicking challenge that users report is almost too fast, highlighting its demand for quick reactions. Reviews also note that the game's level and portal designs are creative, maintaining visual interest. A practical benefit for ad-averse players is the ability to play without interruptions by disabling network connectivity, though this forfeits some progression rewards. Some players have mentioned a desire for a countdown before certain mini-game starts to better prepare, a minor interface imperfection in an otherwise polished experience. While later levels increase in difficulty, the initial stages are accessible, making it easy to pick up for a few minutes of focused play. The ad-supported model is standard for the genre, but the offline workaround is a noted user-approved feature.