Talk:Sonic vs Son Goku/@comment-27928065-20160607200334/@comment-26418719-20160608110720

They're actually referring to Ultra Sonic, an advanced super form that Sonic only accesses once or twice. It's more powerful than Super Sonic, and has matter manipulation as an added power. The first time Sonic used this was what caused the shift from Classic Sonic to Modern Sonic in the comics.