Pogo Spring

Pogo Springs (ホッピング Hopping in Japan) are power-ups and variants of springs, that can be found either from metallic boxes or monitors. Pogo Springs first appear in Sonic Chaos and later make another appearance in Sonic Triple Trouble. In both games, the player can use power-ups with both Sonic the Hedgehog and Miles "Tails" Prower.

Description
Pogo Springs are like other normal springs, however the usage of these items is different when the player got it. After activating it, the playable character is found standing above the pogo spring while he can bounce and move around with it. The player can jump off the pogo spring, which can be utilized to get even more higher in the air. After that, the player will lose the pogo spring immediately until finding another one.

Pogo springs can only be found at certain zones from both games. However the player can not create momentum while having pogo spring. If the player also hits to one of Robotnik's badniks while having pogo spring, the playable character loses both rings/shield and pogo spring while getting knocked off back.

Sonic Chaos
Pogo springs first appear in Sonic Chaos, where these power-ups can be found at Sleeping Egg Zone and Mecha Green Hill Zone. These springs are set in grey metallic boxes that have black and yellow stripe line around. When the player jumps to the box, the pogo spring set under the player and he/she can control the character with D-pad while jumping all the time. For wanting even higher, the player has to press 1 or 2 button to jump off the pogo spring. The player also has to use pogo springs in second Special Stage while getting higher platforms to ultimately get one of Chaos Emeralds.

Sonic Triple Trouble
Pogo springs make return appearance in Sonic Triple Trouble, as these springs can be found at Great Turquoise Zone and Meta Junglira Zone. Unlike in Sonic Chaos, pogo springs are featured as monitor power-ups instead of being set of its metallic boxes. Pogo springs are also somewhat more rare power-ups in the game. As the playable character has its seating pose on pogo spring, the player can normally control the pogo spring with D-pad and jump off the pogo spring with pressing 1 or 2 button once.

Trivia

 * Before Sonic Chaos, some of the Sonic the Hedgehog 2 prototypes unused sprites include monitor icon of Pogo Spring. It is possible that at some point in game development has been the idea to use the similar kind of gimmick.
 * Apparently the Game Gear version of Sonic Chaos cover artwork shows Sonic using yellow colored pogo spring while the game has only red colored ones in metallic boxes to being used.