Bonus Boxes contain a variety of one-off upgrades that can improve your chances of victory. — Hint box, Team Sonic Racing
The Bonus Box is an object that appears in the Sonic the Hedgehog series. It is a series of performance enhancer that can be equipped before a race in order to give a racer an advantage.
The Bonus Boxes, in terms of appearance, resemble the classic Item Boxes from the early Sega Mega Drive games in the Sonic series. As such, they look like simple, gray cubic televisions with a base below them, three buttons below their screen, and a red button on their left side. Their screens themselves each depict an icon that indicate the performance enhancement they grant.
In Team Sonic Racing, the Bonus Boxes comprise a series of different types of performance modifiers, each one with its own unique modification-granting ability. These objects can be equipped to a racer just before a race. When equipped, they will either grant the player one or more Wisp power-ups or bestow a specific enhancement to their performance, such as extending the duration of the Team Ultimate or grant immunity to Slowdowns. However, a Bonus Box is only good for one use; afterward, it disappears. The player can purchase a Bonus Box from Mod Pods, which give out random Bonus Boxes, for ten Credits each.