Super Neo Metal Sonic, also known as simply Super Neo Metal, is a further transformation of Metal Sonic in which, while in his Neo Metal Sonic form, he uses the power of the Master Emerald to achieve a Super Transformation.
Continuing Eggman's Reign for his Sake
After encountering Sonic the Hedgehog and Knuckles the Echidna inside his newly-built fortification around the Master Emerald's shrine on Angel Island, Neo Metal Sonic transformed into Super Neo Metal Sonic by powering-up through the power of the Master Emerald before fighting the two heroes. Super Neo Metal Sonic proceeded to toy around with Sonic and Knuckles in battle, all while ruining or foiling any plan and attempt they made to take the Master Emerald away from him. After defeating both of them easily, Super Neo Metal Sonic found disappointment in them as he never had to unleash his final form. Suddenly, however, he was attacked by Shadow the Hedgehog, who forced him back to his previous form as Neo Metal Sonic with a Chaos Spear to the torso and beaten back to his throne on the Master Emerald. (StH: #9, #10)
Super Neo Metal Sonic looks identical to his Neo Metal Sonic form. However, in placement of his blue coat, he glows gold instead.
Super Neo Metal Sonic's innate abilities far surpass his normal ones as Neo Metal Sonic. His power proved so great that he could toy around with powerful individuals like Sonic the Hedgehog and Knuckles the Echidna without trouble. As Super Neo Metal Sonic, Neo Metal Sonic commands incredible speed, being able to move faster than both Sonic and Knuckles can react and easily match even Sonic's speed. He also has immense strength, overpowering even Knuckles with a simple hand slap. He can also project golden energy bolts and even electrocute his foes with them.