Spring Jump

Spring Jump is Sonic's up special move in Super Smash Flash 2. Sonic steps onto a spring, launching him into the air. When used in the air, the spring becomes a weak projectile. Unlike many other up special moves, Sonic's does not leave him vulnerable and helpless afterwards, allowing him to attack immediately. This move, which acts as Sonic's recovery, provides decent vertical height. It can also provide considerable horizontal recovery when controlled with the arrow keys.

Trivia

 * There is a glitch in which if Sonic uses any attack (with the exception of his down aerial) immediately after using his up special move, he can use his up special move again, making him have an infinite recovery.