Axl first appeared in Mega Man X7 as a protagonist. he possesses a special ability allowing him to take the form of any reploid he encounters. he is allied with Mega Man X and Zero to defeat the Red Alert Syndicate, an opposing entity in the Mega Man X timeline.
Mega Man ZX Timeline
Axl indirectly appears in Mega Man ZX Advent
as Biometal A
, although it is stated that Biometal A originates from Master Albert, a villain reminiscent of Dr. Wily
. Model A possesses many features from Axl, including the twin pistol busters and the reploid copy ability.