The Spring Ball is an upgrade for the Morph Ball that allows it to jump.
In other games that the Spring Ball is utilized in, Spring Ball is either packaged with, or is with the Morph Ball as part of a jumping move performed by flicking the Wii-Mote.
 Metroid 2: Return of Samus
The spring ball is located in sector 2.
 Super Metroid
Due to the somewhat out of the way location of the Spring ball, a remote portion of Maridia that requires a pretty trick jump without Space Jump to obtain, it is sometimes forgotten by players and is considered one of the more pointless upgrades of the game.
The spring ball is not required to progress any major locations on Zebes. Only when getting out of the room it is obtained in, a small, morph ball maze.
 Metroid Zero mission
The spring ball (or spring jump as names in this game) makes its third appearance in Metroid Zero mission and is obtained alongside the High jump boots.