The Bolton and Nutton (ボルトン アンド ナットン, Boruton ando Natton) are guard system enemies that appear out of nowhere in Mega Man 3. Once fully assembled, they will track down Mega Man and attempt to collide with him. They can only be damaged after they have fully come together. They appear in Top Man's stage and Spark Man's stage. With the exception of Search Snake, which they are immune to, Bolton and Nuttons can be defeated with any other Special Weapon.

They also appear in the 3rd Wily Tower Stage in Mega Man: The Wily Wars.

Mega Man 3
Eight Robot Masters
Needle Man • Magnet Man • Gemini Man • Hard Man • Top Man • Snake Man • Spark Man • Shadow Man
Robot Masters in Doc Robot's data
Metal Man • Quick Man • Flash Man • Bubble Man • Wood Man • Heat Man • Air Man • Crash Man
Other bosses
Doc Robot • Break Man • Kamegoro Maker • Yellow Devil MK-II • Holograph Mega Mans • Wily Machine 3 • Gamma
Mega Man's Special Weapons
Needle Cannon • Magnet Missile • Gemini Laser • Hard Knuckle • Top Spin • Search Snake • Spark Shock • Shadow Blade
Mega Man's Support Items
Rush Coil • Rush Marine • Rush Jet
List of enemies
Bikky • Bolton and Nutton • Bomb Flier • Bomber Pepe • Bubukan • Cannon • Chibee • Dada • Elec'n • Electric Gabyoall • Giant Springer Gyoraibo • Hammer Joe • Hari Harry • Have "Su" Bee • Hologran • Jamacy • Junk Golem • Komasaburo • Mag Fly • Mechakkero Metall DX • New Shotman • Nitron • Needle Press • Parasyu • Penpen • Penpen Maker • Peterchy • Petit Snakey • Pickelman Bull • Pole Potton • Returning Monking • Walking Bomb • Wanaan • Yambow
- Mid-bosses -
Big Snakey • Giant Metall • Proto Man • Tama
Locations
Dr. Light's Laboratory • Needle Man Stage • Magnet Man Stage • Gemini Man Stage • Hard Man Stage Top Man Stage • Snake Man Stage • Spark Man Stage • Shadow Man Stage • Wily Castle
Miscellaneous
Script • List of enemies • Damage data chart • Miscellaneous data

Mega Man: The Wily Wars
Genesis Unit
Buster Rod G (rod) • Mega Water S • Hyper Storm H
Wily Tower Bosses
Fire Snakey • Iron Ball • Buster Rod G (buster) • "Wily Machine"
Enemies
Adhering Suzy • Batton • Blaster • Big Eye • Big Fish • Bikky • Bunby Heli • Bolton and Nutton • Bomb Flier • Bubukan • Changkey Changkey Maker • Cannon • Copipi • Foot Holder • Gabyoall • Giant Springer • Hammer Joe • Hari Harry • Jamacy • Junk Golem Kaminari Goro • Kerog • Komasaburo • M-445 • Matasaburo • Mechakkero • Metall • Metall DX • Mole • New Shotman • Parasyu Peterchy • Petit Snakey • Pickelman Bull • Pickelman • Pipi • Pole • Returning Monking • Robbit Screwdriver • Shotman • Shrink • Sniper Armor • Sniper Joe • Springer • Tanishi • Telly • Yambow
- Mid-bosses -
Anko • Big Snakey • Friender
Special Weapons
Air Shooter • Atomic Fire • Bubble Lead • Crash Bomb • Fire Storm • Gemini Laser • Hard Knuckle • Hyper Bomb • Ice Slasher Leaf Shield • Magnet Missile • Mega Buster • Metal Blade • Needle Cannon • Quick Boomerang • Rolling Cutter • Search Snake Shadow Blade • Spark Shock • Super Arm • Thunder Beam • Time Stopper • Top Spin
Support items
Magnet Beam • Item-1 • Item-2 • Item-3 • Rush Coil • Rush Marine • Rush Jet
Items
Extra Life • Life Energy • Weapon Energy • Energy Tank
Miscellaneous
Appearing Block • Bottomless Pit • Blocks • Fire Block • Needle Press • Press • Red liquid • Scrap • Spikes • Mega Man: The Wily Wars Damage Data Chart