Double Jump

The Double Jump is a recurring move in the Sonic the Hedgehog series which first appeared in Sonic the Hedgehog 3. It was first used by Sonic the Hedgehog, but has since been used by Amy Rose and Vector the Crocodile as well. When performing this move, the user does an additional jump in midair.

Description
Double Jump is a special move used after performing a jump. When performing it, the user does an additional jump in midair right after doing a previous jump, without using any solid surface to set off from. In gameplay, this allows the player to get higher into the air and accomplish feats such as grossing gabs too wide for a regular jump or reach higher enemies or areas the player cannot otherwise reach.

Sonic the Hedgehog 3 & Knuckles
The Double Jump first appeared in Sonic the Hedgehog 3, and later its add-on continuation Sonic & Knuckles, as one of Sonic's special moves. In the original Japanese material, it is referred to as the 2 step jump (2段ジャンプ).

To use the Double Jump, the player must have obtained the Lighting Shield for Sonic. Then, to perform it in gameplay, the player must press, or  during a Spin Jump. After setting off with the Double Jump, Sonic will continue to use the Spin Attack which can be used to damage enemies and obstacles. However, should Sonic loses the Lightning Shield, he can no longer Double Jump.

When Sonic is transformed into Super Sonic, the player is able to use the Double Jump with the Lightning Shield as well, except its height will be enhanced. When Sonic is transformed into Hyper Sonic though, the player is able to use the Double Jump on their own in addition to the height enhancement. Additionally, Hyper Sonic's Double Jump will automatically unleash an attack dubbed the Hyper Flash which destroys all nearby enemies.

Sonic the Hedgehog (2006)
This move appeared again in this game where it only used by Amy. When using it Amy will spin and do another jump after her first jump to reach higher areas that she cannot reaches herself. The move's range in this game is highly long and is equals her first jump range. To use it in gameplay the player has to press the  on the Xbox 360 Controller and the  on the PS3 controller twice to use this move.

Sonic Unleashed
This move also appeared in this game where it only used by Sonic the Werehog. When using it, Sonic will spin 360 degree around himself and gains more height in the air. To use it in gameplay the player has to press the  on the Xbox 360 Controller and the  on the PS3 controller twice to use this move. But in the Wii/PS2 Sonic will just jump higher without spinning. To use it in gameplay, the player has to press the  on the PS2 and  on the Nunchuk,Gamecube,Classic controllers twice to use this move

Sonic Colors
This move appeared again in this game where it only used by Sonic as he is the only playable character in the game. Like other games Sonic will do another jump after his first jump, but the only difference is that the range of his Double Jump is less than Amy's in ''Sonic the Hedgehog. ''To use it in gameplay, the player has to press the  on the Wiimote and the  on the Gamecube and the Classic controller twice to do this move.

Sonic Lost World
This move also appeared in this game where it also only used by Sonic. Like Sonic Colors when using it Sonic will do another jump after his first jump and the range of this move is identical to its range in Sonic Colors. To use it in gameplay the has to press the  twice on the Wii U controller to use this move.