Knuckles the Echidna is the guardian of the powerful Master Emerald in the Sonic the Hedgehog video games, TV shows & comics. The evil Dr. Ivo "Eggman" Robotnik has stolen it, though, and taken it to his electronic base. He wants to use it to power a giant, evil robot. Knuckles must hunt it down! In the process, he wants to collect the power rings that Robotnik (Eggman) has stored. Controls: Use the arrow keys to make Knuckles move. Get all of the rings and grab the Master Emerald. Then, escape the base by going back the way you came. Remember, anything that's the color black has sensors, so don't touch them! If you do, Knuckles will have to go to the start of the maze. Please comment! (Oh, and, I know it's kind of dumb, so don't mention it.) Sonic the Hedgehog & Knuckles the Echidna are copyrighted Sega and Sonic Team.