Play Sonic.io unblocked for free then see how long you will survive in a dangerous arena full of enemies. You will perform a lot of action and do whatever it takes for your survival. You must run fast to avoid all projectiles that are coming to you, and try to elude the enemy attacks in time, or else you will get hit. Also, make sure you gather the rings around the arena to grow your score. You are fighting for the top spot on the leaderboard in Sonic.io free online game. Are you ready? Play it now!
How To Play
Move your character around the map using the mouse, and click the left mouse to sprint.