Hyper Sonic

Hyper Sonic is a powered-up super transformation of Sonic the Hedgehog, this transformation is the stage after Super Sonic. Hyper Sonic is obtained by collecting all 7 Super Emeralds which are the powered up version of the Chaos Emeralds which is caused by the Master Emerald. To trigger the transformation, Sonic must also collect 50 rings and do a double jump. Hyper Sonic has all the benefits of Super Sonic, such as invicibility, improved speed, and greater jumping abilities but Hyper Sonic also has some improved abilities such as the ability to breath underwater and a double jump attack that will destroy all enemies on screen, excluding bosses, and is referred to by some as "Sonic Boom" or a "Hyper Flash" however, the former is not an official name, and it is unconfirmed if the latter is.

Hyper Sonic's name comes from the term hypersonic which is a speed above supersonic. Thus far Hyper Sonic's only appearance has been Sonic 3 & Knuckles, but neither Hyper Sonic nor the Super Emeralds have appeared since in any of the games or other media. In Sonic 3 & Knuckles, Hyper Sonic looked very similar to Super Sonic sharing the upturned spikes and green eyes, however Hyper Sonic flashed all 7 colours of the Chaos/Super Emeralds, had large flashing sparks (similar to the invincibility item) and leaves an afterimage when running. This form is much more powerful than Super Sonic. (Let it be noted that Scourge the Hedgehog can also perform this transformation, due to the fact that he has all of Sonic's abilities.) 