Super Sonic is Sonic the Hedgehog's Super Transformation, and is behind his Hyper form in terms of power. In all its appearances, it has been triggered with all seven Chaos Emeralds, which usually have to be collected throughout the main story of the games or through special stages. It is his most well-known transformation, and is typically used against eldritch abominations such as (Perfect) Dark Gaia, Solaris, and the Time Eater. Its first use was seen in Sonic the Hedgehog 2, where it could be acquired by getting all the Chaos Emeralds in Special Stages, then gathering fifty rings and jumping in mid-air to transform.
In this transformation, Sonic's fur takes on a striking gold color, and his eyes turn a red shade, much like Shadow's. His quills float upward, as opposed to naturally pointing down when in normal form. In addition, he gains a golden aura around himself, which becomes more intense when boosting.
His attire - his standard cuffed gloves and socks, plus his trademark shoes - do not change when the transformation is active.
Upon activation, Super Sonic gains the ability to fly incredibly fast, invincibility, and, as demonstrated in Sonic the Hedgehog (2006), can share his power with other characters to unlock their own super forms (in Shadow and Silver's case, they got Super Shadow and Super Silver respectively).