Time Stop

Time Stop (タイムストップ) is monitor item, that has made only made appearance in Sonic Chaos. It is only featured in the game's Special Stages and monitor with the item features yellow and white colored clock icon on the screen

Description
Special Stages in Sonic Chaos have very strict time limit, in which the player has to reach to the Chaos Emerald before the time runs out. While Time Stop items don't literally give extra time for the player, but rather freezes the timer and everything else that is on constant moving during the time with the exception of Sonic himself.

Time Stop's impact takes small amount of time until the timer's countdown will continue to count. During this time, the player has to keep going to gain extra time to reach on Chaos Emerald. Time Stop items are featured in almost every Special Stage of the game along with other monitor power-ups with the exception of the first Special Stage.

Trivia

 * Time Bonus item in Sonic Triple Trouble is heavily similar to Time Stop with the exception of altered color scheme and being able to reverts the timer back to its full limit.