To control the cart you have to swipe your finger across your screen and tilt your device from side to side. That allows you to jump from one track to another, and even lean outside of the cart to collect the coins and gems that are floating alongside the track.
The game includes five different worlds, each one with infinite possibilities, since the tracks are randomly created as you play.
You can buy new playable characters with the money that you earn from each game - in total, there are more than a dozen available.
Rail Rush is a solid endless runner with good controls, an original setting, and charming graphics. In all, it's one of the best titles of its (overexploited) genre.
Requires Android 2.3.3 or higher.