Type xstuff during game play for all X armor, all abilities (Cutter man's scissor throw, etc.) at maximum, all four Energy Tanks filled, full health capacity, and all Bosses completed except for the last three inside the Main Fortress.
Get Upgraded X-Buster early
The Helmet, Boots, and some luck are required for this trick. You usually get the Upgraded X-Buster from Zero, but you can get it much earlier than that. In the Flaming Mammoth Stage, there is a part where mine workers throw picks at you, and where you get the heart and sub-tank. Before you enter there, there is a small location that you can break with your helmet just at the entrance of that room. With luck, you can reach the place with your boots and break the blocks with your helmet. Then, climb straight up to get it.
Extra lives in Armadillo stage
At the very beginning of Armored Armadillo's stage, there is a cart that goes down for a short distance before leveling out again. On the ceiling are a few places where the roof juts out a bit. On each of these is a bat. On around the fifth one is a small black ball that when you approach reveals itself to be another bat, though you do not see these anywhere else. They are actually visitors from some of the original Megaman games. You cannot shoot them while they are in ball form. Wait for them to start flying towards you. Also, these bats happen to give you an extra life quite often, so this is a good place to stock up.
Armor upgrade in Sting Chameleon stage
Before you enter the tunnel with the falling rocks, climb up the wall above it. There will be a green machine there. Fight it. Note: Its weak point is the head. When you defeat it, a capsule will appear from the ground. The armor upgrade will be inside. Note: This will also stop the falling rocks in the tunnel.
Defeating Armored Armadillo
Shoot the Armored Armadillo with your electric spark gun when he is vulnerable. It will electrocute him, all his armor will fall off, and he will be much easier to kill.
Defeating Flame Mammoth
Get the Boomerang Cutter and go to Flame Mammoth's stage. When you reach him, use the Bommerang Cutter on him. After a few hits, his trunk will fall off, and he will not be able to shoot out oil or change the conveyor belt's direction.
Defeating Launch Octopus
To get rid of Launch Octopus's Piranha "homing missiles", use the Boomerang Cutter a few times to cut off his arms.
Defeating Storm Eagle
Get the Dash Boots on Chill Penguin's level. Then, go to Storm Eagle's level and proceed until you battle him. When he is on foot, he might spit out mini-eagles at you or try to blow you off the plane. When he spits the mini-eagles out, dodge them with Dash, then destroy them. If he tries to blow you off the plane, dash towards him and fire at him. Keep firing until he flies back up. When he swoops down at you, keep dodging him. Repeat this process until he is defeated.
