Needle Cannon

Needle Cannon (ニードルキャノン) is Needle Man's special weapon. It is a rapid fire weapon. that fires needles that slightly alternate heights. The player can hold the button to use rapid fire. Up to three needles can be used at the same time.

Capacity
Four shoots of the Needle Cannon use one weapon energy unit in Mega Man 3 and Mega Man II. With a full weapon energy gauge, it can be used 112 times in Mega Man 3 and 76 times in Mega Man II.

Bosses weak against Needle Cannon

 * Mega Man 3: Snake Man, Doc Robot (Flash Man and Wood Man), Needle Man (2nd Encounter)
 * Mega Man II: Magnet Man
 * Super Adventure Rockman: Gemini Man

Bosses immune to Needle Cannon

 * Mega Man 3: Hard Man, Doc Robot (Metal Man), Wily Machine No. 3 (1st Form), Gamma
 * Mega Man II: Hard Man, Wily Machine
 * Mega Man: The Wily Wars: Iron Ball, Wily Machine