Sliding

The slide is a move that Mega Man can use since Mega Man 3 (exceptionally, he cannot use it in Mega Man 9). It allows him to evade enemy projectiles and access narrow passageways. It can also be used to move faster. Mega Man cannot fire his buster while sliding.

The slide can be executed by pressing "Down" and the "Jump" button together. The slide can be interrupted by jumping.

Proto Man
Proto Man is a playable character in Mega Man 9 and can also use the slide in that game. There is no difference between Proto Man's and Mega Man's slide.