Wall Blaster

Wall Blaster (ウォールブラスター) is a wall-mounted cannon enemy that appears in Ring Man's stage in Mega Man 4 and Mega Man IV. Wall Blaster can shoot in seven directions.

Wall Blaster II
Wall Blaster II is an improved version of Wall Blaster that appears in Mega Man 6. It is waterproofed so it can also be set underwater, but now it is slower and can shoot only in three directions. It appears in the stages of Flame Man, Centaur Man, Mr. X Stages 1 and 4, and Wily Stage 3.