Boss Order/Preferred Weapon to Use
This is the suggested order to defeat the Robot Masters in, as well as which weapons to use on both them and the bosses in Dr. Wily's castle:
Galaxy Man - Use Mega Buster.
Jewel Man - Use Black Hole Bomb.
Plug Man - Use Jewel Satellite.
Tornado Man - Use Plug Ball.
Magma Man - Use Tornado Blow.
Hornet Man - Use Magma Bazooka.
Splash Woman - Use Hornet Chaser.
Concrete Man - Use Laser Trident.
Wall Shooters - Use Mega Buster.
Giant Machine - Use Laser Trident.
Blob Monster - Use Black Hole Bomb.
Dr. Wily #1 - Use Mega Buster.
Dr. Wily #2 - Use Mega Buster.
Dr. Wily #3 - Use Plug Ball.
Acquiring the Rush Jet Adaptor
Instead of getting the Rush Jet Adaptor when defeating a specific Robot Master and assimilating the skill along with that Robot Master's weapon, the Rush Jet Adaptor is earned by Mega Man after any five Robot Masters are slain. When the fifth is killed, Roll and Auto will automatically give Mega Man this adaptor.