What is Sonic the Hedgehog's maximum running speed?
This question isn't exactly limited to the video game (there's also the Archie Comics books and a TV series), but was there ever a canon answer on how fast Sonic can run? In his Super Sonic or Hyper Sonic states? I suppose one would have to assume he's running on a flat surface.
Supersonic and Hypersonic are imprecise terms. Supersonic means "above sonic" and "hypersonic" is a subset of supersonic meaning "highly supersonic". Generally hypersonic *generally* refers to speeds above Mach 5. Like these terms, Sonic's speed is never called out as an exact quantity of distance per time, rather that "he is faster than the speed of sound". Anything more specific than this is not quoted.
Actually, Super Sonic and Hyper Sonic are states of being for STH when when he has all 7 chaos emeralds and super emeralds respectively. Think of if as super sayin levels 1 and 2 from the Dragon Ball Z series.
This wiki answer "How fast does sonic run in full speed" lists Sonic's increased speeds as he evolved through the games and shows.
- Originally he was said to be the speed of sound, at 767+ miles per hour at sea level.
- In Sonic Unleaded the check points would report his speed in excess of 2500 miles an hour.
- The Sonic Adventure DX manual lists him at least as fast as 3840 miles an hour (hypersonic)
- After that he developed light speed attacks and the ability to travel at light speed and to freeze time.
Like most super powered characters, his powers keep expanding to extend the story. Soon he will be able to transcend both time and space.