Select the password option at the title screen and enter the following in the 3X4 grid, inputting the password from left to right, starting from the top left corner:
Effect Password 4 Sub-Tanks, All Turbo Hearts, All Upgrades, All Bosses Defeated 8441 2176 4423 All 4 Subtanks, no armor, no weapons, no hearts 5724 8418 3588 All 4 Tanks, all heart tanks, and all bosses defeated. 2653 3858 7584 All abilities, heart tanks, sub-tanks, all bosses defeated, Zero's buster 8447 4666 6156 All armor upgrades, subtanks 6624 5468 8588 All Bosses Defeated - No Leg/Body/Helmet/Buster/Heart/SubTank 4723 2486 1324 All bosses defeated 2 turbo hearts 2 subtanks 4653 4688 7884 All bosses except Boomer Kuwanger and Sting Chameleon dead. 2137 3188 8121 All bosses except Sting Chameleon dead. 2556 2582 7114 All powerups and armor upgrades, all bosses beaten the first time through. 3676 4667 5148 All Subtanks & Hearts, NO Armor & Weapons 3748 8612 5524 All Upgrades No bosses Defeated 6485 1146 2321 All Upgrades, All bosses defeated, 1 turbo heart. 5583 4618 5824 All Upgrades, Chill Penguin Defeated, Storm Eagle Defeated 4423 8832 7824 All weapons, sub tanks, hearts, and levels completed 8141 2136 4426 Arm Capsule only 4764 8768 7748 Armored Armadillo defeated 5147 8437 4536 Beat the top half, and have collected the power ups on the top half. 7374 2268 6281 Body Capsule only 4764 5788 3748 Boomer Kuwanger defeated 5151 3427 4261 Chill Penguin and Storm Eagle dead. 5286 7136 5124 Chill Penguin Defeated 4768 7258 1871 Chill Penguin, Storm Eagle, and Flame Mammoth dead. 5337 5377 4171 Chill Penguin, Storm Eagle, Flame Mammoth, and Spark Mandrill dead. 2147 5277 1281 Chill Penguin, Storm Eagle, Flame Mammoth, Spark Mandrill, and Armoured Armadillo dead plus slide ability and head capsule. 6431 5168 8171 Chill Penguin, Storm Eagle, Flame Mammoth, Spark Mandrill, and Armoured Armadillo dead. 2656 5112 3164 Everthing unlocked ecxept no beaten Sigma 7431 3842 8523 everyone accept sting chameleon defeated, 6 heart tanks, 3 armor upgrades, and 3 sub-tanks 8437,2788,8161 Everything obtained except Leg Capsule 8441 2336 2421 Final Sigma Level/Last Battle 3733 6838 8744 First mini-level beaten 1764 1488 7748 Flame Mammoth defeated 1573 5232 7264 Full armor, 2 hearts, 2 sub-tanks, Chill Penguin, Storm Eagle and Flame Mammoth deafeated 1447 1838 1271 Get an extra life tank 5447 4177 4536 Have Storm Eagle, Flame Mammoth, Chill Penguin, & Boomer Kuwangtang dead w/ chest, helmet, arms, leg upgrades, 1 sub-tank, & a turbo heart 6111 8747 4181 Head Capsule only 4664 1718 7748 Launch Octopus defeated 1556 6642 7448 Leg Dash No bosses Defeated 5382 8566 2656 Leg Dash, Helmet Enhancement, No Bosses Defeated 4425 7272 3821 Leg Dash,Helmet enhancement with no bosses defeated 1422 1412 7756 No Leg Dash, Chill Penguin Defeated 2653 7248 6488 Opening Stage beat 5385 7136 6321 Spark Mandrill defeated 5131 7358 4181 Sting Chameleon defeated 5385 7136 6861 Storm Eagle defeated 6483 7376 5124 To have all Turbo Hearts, all Sub-Tanks, and all Armor Upgrades with no bosses defeated 3475 5668 2581
Elevator Spikes Invincibility
The elevator sequence in Boomer Kuwanger's tower is full of spikes. Due to programming issues with the hit detection, however, they pose almost no threat whatsoever. If you take damage from one of the flying enemies just before reaching a spiked platform, X will simply clip right through the platform instead of instantly dying. If you jump on the spikes lining the walls, press the jump button again while X is taking damage, and his health bar won't register the hit.
When you first enter Flame Mammoth's factory, take a closer look at the ceiling tubes that drop the spare robot parts. Despite their appearances, they're actually large holes, not solid objects. To reach inside, simply jump on top of a scrapped Utuboros head, and then do a dash jump into the tube. If done correctly, X will connect with the inside of the tube, and can wall jump off-screen and walk on top of the ceiling. The bottom of X's boots will still appear onscreen, allowing you to keep track of his position. You can use this method to bypass the first conveyor belt section. You'll have to dash jump across when you reach the walkway section. This area will be differently colored, and have a glitched sub tank sprite, a missing capsule, and invisible enemies due to the stage not loading correctly.
This password has four known effects depending on how you execute it - the password is 7443 2241 1221. Regardless of what you do, it will sound as a "wrong" password, but the effects take effect nonetheless. If you enter the password without going into the demo, the game will hang upon gameplay beginning. If you enter the black screen moments prior to the demo, then go on and enter the password, you simply start with 10 health. If you go into the demo once, then exit it and enter the password, you'll start with all weapons, 32 health, and zero lives. Finally, if you enter the demo, wait it out, then press Start in the black screen prior to a second demo, you can enter the password to start with 10 health and all weapons.
Contributed By: KeyBlade999.
Skip Armored Armadillo Rematch
Before you enter the room for the Armored Armadillo rematch, position X slightly less than two body lengths away from the door. Equip the Shotgun Ice and do a fully-charged shot. While the ice platform is forming, have X walk in front of it. When the new platform spawns, it will push X into the door, but the camera won't adjust to the correct position. This causes the room to load incorrectly. If you walk straight through, the door on the other side will automatically open, and Armored Armadillo won't appear at all. If you jump while in this room, however, a glitched version of Armored Armadillo will load.
Get three sub-tanks and make sure one of your special weapons has less than full power. Then, with the weapon that has less than full power selected, grab a weapon capsule and immediately hit start. If you did it right, you'll have a fourth sub-tank. Fill it using the same method, just don't over fill or you'll delete it and your third one. It recovers health just like the a normal one.
Contributed By: VincentX.
This is done by not getting the arm Power up in Flame mamoth's stage.
Unlockable How to Unlock Z Buster Go to Sigma stage 1 and you will get Zero's buster during the stage.
Contributed By: thomas_light.
Mega Man Fireball
Must have Heart Tanks, Sub-Tanks, enemy weapons, and power-ups. Then, go to Armored Armadillo's level. Reach the final mine cart, which launches you through the air at the end of the level. Just before you reach the wall, jump up and climb the wall. At the top, there will be a large Energy Unit. Get it, and then jump into the pit and die. Repeat this step five times. On the fifth time through, a capsule will appear on that same ledge. Dr. Light will then give you a Ryu-style fireball for Mega Man to use.
Contributed By: ElementalKnight.
Some stages are a little different if you beat a certain boss first. If you beat Chill Penguin, the Lava in Flame Mammoth's stage will be frozen. If you beat Storm Eagle, the lights in Spark Mandrill's stage will flicker on and off. If you beat Launch Octopus, Sting Chameleon's stage will be partially flooded.
Contributed By: Biggoron_2000.
Stronger normal shots
Dash while firing your uncharged X-Buster to cause the shot to deal double damage. This is useful when you don't have time to wait for a shot to charge.
Contributed By: Mr_Weird_Guy.
Boomerang Cutting Flame Mammoth And Launch Octopus
Aside from their usual weapon weaknesses, Flame Mammoth and Launch Octopus have a special vulnerability to the Boomerang Cutter. It doesn't cause any extra damage to their health bars, but it severely weakens their offensive capabilities. Three Boomerang Cutters will slice off Flame Mammoth's trunk, leaving him unable to shoot fire, oil, or change the direction of the conveyor belt floor. Launch Octopus will lose four of his tentacles, leaving him unable to fire his homing missiles or activate his whirlpool energy drain attack.
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