Rolling Combo

The Rolling Combo is a technique performed by Sonic the Hedgehog and Miles "Tails" Prower in Sonic the Hedgehog 4: Episode II. By pressing the X/Square button (Console versions) on the ground (as pressing it in the air will activate flying/subnarine mode), the two combine a spin attack and roll and destroy enemies in an instant (even enemies like Snowy, who takes 3 hits) and large obstacles, like pilliars. It is much faster then a regular spindash and is used often in White Park Act 1, as there are some digging sections that can only be passed with the Rolling Combo. While doing the rolling combo, you are imminue to spikes.

Trivia

 * Not much is currently known about this move except, that in an article published on Xbox, it is one of Tails' new abilities (Nothing was said about Sonic).
 * This move was used in the Teaser Trailer for the game. Some fans were unsure if it meant a new move or not.