Rockman 4 - Burst Chaser X Air Sliding is a romhack that combines two unique concepts from 2 different Rockman hacks. Burst Chaser, where Rockman moves fast with farther jumping distance. And Air Sliding, where Rockman can slide in mid-air.

Rockman 4 BCAS also features new music, level designs & modified enemy & Robot Master AIs, as well as new weapons.

http://www.romhacking.net/hacks/2116