Maximum Tension Bonus
The Item Box containing Maximum Tension Bonus in
power-up with a meteor/star on the screen.
Maximum Tension Bonus, also known as the  Max Tension Bonus  (, is a recurring MAXテンションボーナス Makkusu Tenshonbōnasu ) ? Item Box power-up in . A more powerful version of the Sonic the Hedgehog series Tension Bonus, it can fully charge the Tension Gauge.
When depicted on
Item Boxes, the Maximum Tension Bonus' icon varies in design between games. When obtaining this power-up, it refills the player's Tension Gauge to its maximum, overcharging it and enabling unlimited use of the Super Boost/ Fire Boost for a short time.
Within the multiplayer, the Item Boxes containing this power-up are marked with two vertical arrows pointing in opposite directions. When obtained in the games' multiplayer, the Maximum Tension Bonus will simultaneously influence the opponents' Tension Gauge negatively.
The Maximum Tension Bonus first appeared in
under the name Sonic Rush Max Tension Bonus  (. In this game, the MAXテンションボーナス Makkusu Tenshonbōnasu ) ? Item Boxes with this power-up in Gameplay mode are marked with a sparkeling yellow star icon, like the one on top of the Tension Gauge. When using this power-up in the game's Battle mode (multiplayer), the opponent's Tension Gauge also becomes depleted.
Sonic Rush Adventure
, this power-up became known as the Sonic Rush Adventure Maximum Tension Bonus. In the game's Battle mode (multiplayer) however, it is referred to as the  Tension Bonus. Here, the icon for the  Item Boxes in Adventure Mode with the Maximum Tension Bonus depicts a red and white meteor. When using this power-up in Battle mode, it also depletes the opponent's Tension Gauge to zero.
The Max Tension Bonus' icon in the Battle Mode of
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Jason Griffith ( | Sonic) Mike Pollock ( | Eggman, Eggman Nega) Amy Palant ( | Tails) Bella Hudson ( | Blaze) Lonnie Hirsch ( | Captain Whisker) Christopher Pellegrini (
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Jun'ichi Kanemaru ( | Sonic) Chikao Ōtsuka ( | Eggman, Eggman Nega) Ryo Hirohashi ( | Tails) Nao Takamori ( | Blaze) Shinya Fukumatsu ( | Captain Whisker) Kota Nemoto (
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