What's inside
8 worlds
Meadows, ocean bays, canyons, snow peaks, sky islands, a neon city, a volcano and a space station, each with its own scenery and music.
Boss chases
At the end of every world a giant ball rolls after you. Keep moving or get flattened.
Wild tracks
Loops, glass tubes, half-pipes, slamming hammers, swinging platforms, brick walls, ice and conveyor belts.
Gems and power-ups
Grab risky gems, then magnets, shields and double coins. Land on x5 at the bonus ramp.
Races and ghosts
Race rival marbles, and chase a ghost of your own best run on every level.
Unlock your style
22 ball skins, 9 trails and 5 finish celebrations, plus trophies and a daily reward.
How to play
Hold anywhere to roll. Slide sideways to steer. Pull your thumb down to stop or go backwards. On a computer, use the arrow keys.