Mega Man III/Walkthrough

Suggested order
First selection screen:
 * 1) Snake Man: obtain the Rush Coil, necessary to get some items in the next stages.
 * 2) Gemini Man: weak against Snakeman's weapon.
 * 3) Shadow Man: weak against Geminiman's weapon.
 * 4) Spark Man: weak against Shadowman's weapon.

Second selection screen:
 * 1) Drill Man: obtain the Drill Bomb, necessary to get some items in the next stages.
 * 2) Dust Man: weak against Drillman's weapon; also obtain the Rush Jet.
 * 3) Skull Man: weak against Dustman's weapon.
 * 4) Dive Man: weak against Skullman's weapon.