Red Cube and Blue Cube are best friends who love a friendly competition. One day they decide to take on a course that nobody has ever finished. Best Friends Adventure is an endless runner where you control both of them at the same time, which is much harder than it sounds.
The two cubes run side by side on their own tracks, and obstacles keep appearing in front of each of them. Make each cube jump at the right moment to clear its obstacles. The longer both of them keep going, the more points you earn. Leaderboards for Red Cube and Blue Cube are shown at the top of the screen, so you can pick a side and chase the record.