When Sonic's Final Smash is activated, the 7 Chaos Emeralds will orbit around him dealing considerable damage and knockback to any opponents who come into contact with them. Sonic will transform into Super Sonic saying "Now I'll show you!" ("Super Sonic style!" in Super Smash Bros. for Nintendo 3DS / Wii U), before the emeralds disappear back into Sonic. He gains the ability to fly around the stage at an incredible speed, thus it is the fastest power up usable by Sonic. The transformation lasts for about 15 seconds and while Sonic is transformed he is completely invincible. Sonic can attack in this form by simply ramming into opponents; the faster he's going, the more damage and knockback is dealt. It is similar in function to Pikachu's Final Smash, Volt Tackle, except that it cannot go through platforms like Volt Tackle, and has better knockback and control. Super Sonic can't KO himself when he reaches the edge of the screen, regardless of how far it is going, but if he turns back to normal while he's too far away to recover, he'll be penalized with a self-destruct. He is also unaffected by bumpers.
If it is used when a section of the Bridge of Eldin is materializing, the move will end instantly. This is also useful when Sonic is falling down from the platform, which prevents him from being KO'd as it can break his fall. The move cannot go through fall-through platforms. When it hits, it does about 35 damage, but the first attack is roughly 25 damage, and never lower. Experienced players who have learned how to control Super Sonic's slippery movement can use and abuse his relatively high damage output and insane speed to score multiple KOs.
Sonic's Final Smash. The Chaos Emeralds give energy to all living things, and Sonic's gathered all seven of them, then used their power to transform into Super Sonic. His abilities in this form far surpass his normal ones, and he is even able to fly. He uses a lot of energy in this form, so he can only remain in it for a short time, but this time can be extended by collecting "rings".
In the Final Smash, the Chaos Emeralds can be seen briefly before Sonic turns into Super Sonic, and once he transforms back into Sonic. In the latter instance, the Chaos Emeralds fly off the screen in 2D.
In the games, Sonic had to collect all 7 (six in the first game, therefore he could not transform) Chaos Emeralds in order for him to turn into Super Sonic. In the older games, the Chaos Emeralds were hidden in Special Stages and were treated as the easter egg/unlockable feature in the games (starting with Sonic and Knuckles, other characters were capable of attaining Super forms such as Knuckles). Whilst in Super form, Sonic will act under the influence of the Invincibility and Speed-Up items, drastically increasing his speed and can destroy enemies merely by touch. However, because of his immense speed, the player could easily fall victim to pitfalls, the one thing he is still weak against. In addition, the Super form does not last for long as it consumes the player's Rings constantly, and thus must continue to grab Rings to maintain the state. Beginning with Sonic Adventure (excluding Sonic Shuffle), Super Sonic is only available for play in the final boss battles which required him to defeat a similarly-powered up major antagonist. In Sonic Generations, however, Sonic must collect the Chaos Emerald to get to the final boss. In games such as Sonic Adventure 2, Sonic is partnered up with other characters who have obtained a similar Super form. As of Sonic the Hedgehog 4, the normal conditions for obtaining Super Sonic through Special Stages have returned. In Sonic 3 & Knuckles, upon collecting all 7 of the Super Emeralds allow him to become Hyper Sonic - a form much stronger, but with more ring consumption than Super form. Games such as Sonic & The Secret Rings & Sonic & The Black Knight replace the Chaos Emeralds with something similar in fashion.
- Super Sonic isn’t Sonic’s strongest form. In Sonic the Hedgehog 3 & Knuckles exclusively, Sonic can transform into Hyper Sonic, where his speed is unlimited and his strength is unmeasurable.
- In Sonic the Hedgehog 3, Sonic & Knuckles, and Sonic 3 & Knuckles, Super Sonic's eyes were green. They were later changed to red when Sonic's new look had green eyes in his normal form, although the game Sonic Pocket Adventure also featured Super Sonic with green eyes (despite him having green eyes in his basic form as well).
- One of the only forces in the game that can affect him is the Isaac assist trophy, and with correct timing, can cause him to self-destruct if it pushes him away from the side when the Final Smash has ended or nearly ended, effectively meaning that he can't recover.
- There is a glitch with Super Sonic that occurs on Green Hill Zone. If Super Sonic is used just before a part of the Green Hill Zone ramp comes back, Super Sonic will be able to move underneath the ground of Green Hill Zone. So as long as he does not fully come back up from underneath the ground, Super Sonic will stay that way, until the end of his transformation. This glitch also can happen with Wario's Wario-Man as well if the player uses his aerials to stay up.
- When activating his Final Smash with either giant or mini mode on, Sonic's voice will be unaffected.
- If the game is paused at the right time, it can be seen that Sonic turns into Super Sonic before the Chaos Emeralds enter his body.
- Regardless of which color Sonic is currently using, Super Sonic will always use the default color scheme.
|Sonic's Special Moves|
|Standard Special||Homing Attack|
|Side Special||Spin Dash|
|Up Special||Spring Jump|
|Down Special||Spin Charge|
|Final Smash||Super Sonic|