Dash Panel

Dash Panels allow the player's speed to increase to top speed when as soon as you walk/run on top of it.

First Use
Sonic and Tails first used it in Sonic the Hedgehog 2, but the only zone it was featured in was the Chemical Plant Zone. It was larger than the characters and black.

Sonic Advance series
Dash Panels had a different look. Basicly the same as the ones in Chemical Plant Zone, but smaller and orange.

Shadow the Hedgehog (game)
The dash panel has a different look again. Now it is flat and black and has red arrows on it.