Horizontal Bars (スプリングポール,Supuringupōru?, lit. "Spring Poles"), or Swing Bars, are gimmicks that first appeared in Sonic Adventure 2. They are used to launch the player higher into the air in order to reach shortcuts or send him flying across gaps that otherwise cannot be spanned.
In order to grab a Horizontal Bar, the must either jump into it or use his Homing Attack. Once he has grasped it, a circle will appear around the bar. This circle is mainly yellow, with a blue section in the front. As Sonic, Shadow swings around the bar, the circle lights up according to Sonic's or Shadow's alignment with the bar, similarly to a Plan Position Indicator radar display. If the player presses the button at the time the playable character is in the red field, the user will be launched forward and upward; however, if the player presses the button too early or too late, the playable character will be launched forward and downward with much less speed. In some games it will makes the player fall to the ground if the player presses the button early or too late.
Sonic Adventure 2
Sonic the Hedgehog (2006)
In the console/PC version of Sonic Generations, horizontal Bars are usually seen two-dimensional sections, held in place by a pole in the background. The player must press / to release the Horizontal bar.
The only times Horizontal Bars appear in three-dimensional sections are in the Challenge Act "Cream: Helping Hand" and the Seaside Hill Challenge act "Surf, Sea and Sand". They function exactly the same, but the circle that appears is slightly harder to read due to the camera angle. There are no poles holding the bars.