In Stair Run Online, you get to be a super speedy character who runs and jumps up colorful staircases! You collect big blocks on your way that make you taller, and the taller you get, the faster you run! Watch out for gaps and tricky spots because if you fall, you have to start over! You can race against your friends or try to beat your own high score. There are cool power-ups too that can help you zoom ahead. It’s like a fun obstacle course in a giant rainbow world! Let’s see who can reach the top first!