Fire Wave

Fire Wave (ファイヤーウェーブ) is the weapon that X obtains from Flame Mammoth in Mega Man X. It releases a constant stream of flames that continues as long as the attack button is held down. When charged, X will unleash a wave of flames that continue along the ground as long as it is on-screen and the terrain doesn't change.

Note that because the uncharged Fire Wave is continuous, six weapon energy units will be wasted to allow use of the charged attack (once equipped with the Arm Parts). Once completely charged up however, X will stop using the Fire Wave. If one wishes to use only the charged up version of Fire Wave, the player must charge up another weapon, and once X starts to glow pink can the player shift to Fire Wave without spending additional energy. On the other hand, if one wishes to continuously use Fire Wave at a constant rate, the player must release the attack button just before X begins to glow pink (assuming the Arm Parts have been obtained).