Pile Driver

Pile Driver is Impact Man's Special Weapon in Mega Man 11. Once Mega Man obtains it he gains a special air dash ability that allows him to attack opponents he rams into which shoves them off into an explosion.

Using this weapon with the Power Gear enhances this attack, giving Mega Man a longer dash and generating greater explosions.

Just like the other Special Weapons in Mega Man 11, Pile Driver alters Mega Man's physical appearance when equipped, rather than simply swapping his colors. In this case, it gives him a new helmet that closely resembles Impact Man's (minus the head spike), and replaces his left hand with a jackhammer with which he uses to perform the air dash attack. It also colors Mega Man's body to be orange on one side and yellow on the other side, much like Impact Man himself.

Trivia

 * This weapon's long air dash attack is similar to the Speed Burner's charge attack from Mega Man X2 and Mega Man Xtreme.
 * The Pile Driver was mentioned earlier on a Game Informer post about Mega Man 11, posted in 2017, though its name wasn't revealed at the time.