- This article is about the item in Competition mode. For the Monitor power-up with the same name, see here.
Changes are found inside bubbles. They are depicted as blue circles with white arrows circling around each other.
In Sonic the Hedgehog 3 and the add-on continuation Sonic the Hedgehog 3 & Knuckles, Change is one of the power-ups exclusive to the Competition Mode. In gameplay, each Change item is inside a bubble that floats and rotates around one point in a Zone with a Ring for example. When the player collects a Change, the power-ups possessed by the two players competing in Competition Mode at the time will be swapped between them. However, Change will not work if the other player does not have a Ring, Speed-Up Shoes or Slow-Down Shoes in use at the same time.