Hang onto this ladder and shoot the Top Dispenser. Mega Man can't be damaged by the Tops this way.
If you need the energy pellets, use Rush Coil to get up to the second level and get them. Be sure to double back and go through the bottom so you can refill Rush.
Slide off both of these platforms to avoid any confrontation with the Nut and Bolt.
Jump up on this level, shoot the Bulldozer, then collect the power ups.
Jump to avoid the hairballs that the Bobcat coughs up at Mega Man, then fire at the Bobcat's mouth.
Fire a shot from the Arm Cannon so this Hard Hat will land on it.
Jumping from one Top platform to another is much easier than it looks. Just relax and jump to the next platform when it's even with or lower than the current one.
Say hello to Top Man. He doesn't look happy.
When Top Man's tops are in the air, fire a Hard Knuckle at him.
Jump out of the way of Top Man's tops. Mega Man can also slide under them without being hurt.
Defeating Top Man will earn you the Top Spin, an odd weapon to say the least.