"Spiritus Ex Machina, Part Two: First, Do No Harm"
*It's pandemonium as the Emerald Spears extremist group has taken everyone at the A.R.T.S. hostage! It's up to Mega Man and Rush to lead Elec Man, Pharaoh Man and Quake Woman to save the day! Meanwhile, Dr. Wily attempts to awaken the power of the mysterious Ra Moon. *Source: archiecomics.com
Collected in Mega Man TPB Vol 4.