- For fans of the classic game series Sonic 3 Knuckles: The Challenges, comes this fun online game. Where you must help the classic Sonic to pass this new adventure. Sonic goes out to explore this new world and you must guide his way to the goal, but be careful with the enemies. Have fun helping Sonic to go far in this dangerous game. Have a good time with this exciting game watching Sonic overcome all the challenges.
Enjoy the game Sonic 3 Knuckles: The Challenges, it's free, it's one of our Sonic the hedgehog games we've selected.