About Sonic Speed Run
Experience lightning-fast action as Sonic in this retro-style pixel endless runner! Grab as many Rings as you can, dodge hazards, and push your limits in an endless race for the highest score. How long can you survive the ultimate speed challenge?
How to play
Spacebar Jump Double Spacebar DOUBLE JUMP
Can I play Sonic Speed Run for free at school?
Yes — every game on ClassFrog is 100% free, no downloads, and loads on Chromebooks. If your school blocks ClassFrog, try the tab cloaker to disguise this site.
