Highlight X at the character selection screen. Press X, X, Left, Left, Left, Left, Left, Left, then hold L and Z buttons and press Start/Pause, hold L and Z until you enter the first stage. After the first stage go to the Jungle Level and go to where the Leg Enhancement would be and the Dr. Light Give you the Ultimate Armor whit the Nova Strike unlimited.
First got to the character select screen. Highlight X. Press up twice and down 9 times. You will then unlock X's Ultimate Armor. To unlock Black Zero highlight him at the character select screnn and press down twice and up 9 times. That will unlock Zero's Black Armor.
Hold down A on player 2's controller while loading X2. Keep it held until a list appears onscreen; this is the "Cx4 Test", a developer's diagnostic tool leftover in the game. Unless you happen to have knowledge of game programming, very little in this menu is likely to make sense to you. Press any button to start the game.
First you need to kill Vile who can be found in Volt Catfish, Crush Crawfish and Blizzard Buffalo's stage. You must kill him using Neon Tiger and Crush Crawfish's abilities.
Then, go to Doppler Fortress stage 2. Switch to Zero before going in the mini-boss fight and kill the Mini-boss with Zero. The mini-boss will weaken Zero and he will give X the Z-Sabre.
NOTE: There are 2 ways you can use the Z-Sabre... with or without the Arm part. If you have the Arm part, Getting the Z-Sabre will take a while but the Z-Sabre will throw a wind slash taking more than half a boss's energy. If you use it without the Arm part, will only have to get the Level 2 charge shot and then you'll glow green when you fire it the shot. Using the Z-Sabre with no Arm part will not create the Wind slash.
In X3 get everything except any of the 4 upgrade chips, hearts sub-tanks power armors head leg arm and body parts, then in teh 1st Doppler stage down to where the spike balls fall(a bit after the mini boss) go down the first shaft and stay on the left wall. Theres a secret passage in the wall and if you have full health but I dont think full subtanks there will be a capsule where light gives you a chip that provides all 4 of the body chip effects, regen when standing still, a new weapon that lets you fire off fully charged shots for a bit, 2x air dashing and even better damage reduction.
In Sigma's 3rd stage, when you come across the lift that won't fall when you stand on it, slide all the way down the right wall until you went through the wall and you will come across a secret capsule. Ulimate Armor - Go to the capsule with X with no armor Black Zero - Go to the capsule with Zero
Must have Heart Tanks, Sub-Tanks, enemy weapons, and power-ups. Then, go to Armored Armadillo's level. Reach the final mine cart, which makes you launch 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.
Zero's Buster is like the X-Buster Upgrade except that it is much easier to get. First, don't take the X-Buster Upgrade from Dr. Light's capsule. Head over to Sigma Stage 1 and go through it until you meet Zero and Vile. Kill Vile, and then walk over to Zero. He will give you his Z-Buster. This will allow you to charge to the pink level and also allow you to charge special weapons.
The Capsule for this is located in Hunter Stage 3. When you see an area with spikes on the right and 2 stairs (one going down and the other going up), get a bat near there and use the Crystal shot to freeze the bat and get up there. Continue from there and when you fall down a pit, stay to the left to find the capsule.
You'll get Ken's uppercut IF you have gotten all Hearts, Armor parts and Sub-Tanks. To do the uppercut Press Forward + Down + Forward + Fire.
Before each level in Mega Man X5, you're given a choice of which character to use. You only have X and Zero available to you at the start, though you can unlock a third character of sorts right when the game begins.
If you begin the game as X, you'll automatically unlock the Force Armor, a replica of a fully upgraded X from Mega Man X4, as being available to use in the game's levels. Given how difficult Mega Man X5 is, the Force Armor is a nice recourse to use should you ever get stuck -- though it's recommended that you only use the Force Armor if you're truly stuck, as it takes virtually all challenge out of a level when you decide to use it.
Select the Password option on the title screen and enter the following codes into the 3 X 4 grid, inputting the numbers left to right, starting from the top lefthand corner. Doing so will unlock various levels, weapons, armor, defeat bosses, etc.
Password
Effect
5628 4884 3851 4221
First level beaten.
1643 2854 6146 1227
Gravity Beetle and Neon Tiger defeated. Bit defeated. 1 heart tank, 3 Energy tanks and Leg Upgrade
7743 5256 1441 5486
Gravity Beetle defeated
5114 4185 6872 3111
Have Everything Except Z-Sabre, and have 3 of the 4 Chips
8317 1683 6772 3876
Start off at Dr. Doppler's lab
5414 6685 6872 3114
Start on Doppler Stage 1 with all Sub-Tanks, all Heart Tanks, all Ride Armor, all upgrades, and the Z-Saber. (note: no super chip udpgrades)
8127 4565 6316 5316
Super Armor, Dual Air Dash and Energy Recharge, no bosses defeated
8127 4535 6316 5311
Super Armor, Dual Air Dash and Hyper Crash, no bosses defeated
8127 4565 6316 5351
Super Armor, Hyper Crash, and Energy Recharge, no bosses defeated
7357 7533 6462 7835
Super Password (Everything except the Golden armor which cannot be saved onto a password)
1648 2858 1141 5241
Two Sub Tanks, Neon Tiger defeated.
5621 4864 1851 1221
Two Sub Tanks. Neon Tiger and Gravity Beetle defeated.
Select the Password option on the title screen and enter the following codes into the 3 X 4 grid, inputting the numbers left to right, starting from the top lefthand corner. Doing so will unlock various levels, weapons, armor, defeat bosses, etc.
Password
Effect
1462-3327-6488-3246
All armor, 8 hearts, 4 sub-tanks, all Zero parts, 1st maverick hunter level
Select the Password option on the title screen and enter the following codes into the 3 X 4 grid, inputting the numbers left to right, starting from the top lefthand corner. Doing so will unlock various levels, weapons, armor, defeat bosses, etc.
Password
Effect
8441 2176 4423
4 Sub-Tanks, All Turbo Hearts, All Upgrades, All Bosses Defeated
5724 8418 3588
All 4 Subtanks, no armor, no weapons, no hearts
2653 3858 7584
All 4 Tanks, all heart tanks, and all bosses defeated.
8447 4666 6156
All abilities, heart tanks, sub-tanks, all bosses defeated, Zero's weapon
6624 5468 8588
All armor upgrades and subtanks
1447 1838 1271
All armor, 2 hearts, 2 sub-tanks, Chill Penguin, Storm Eagle and Flame Mammoth deafeated
4653 4688 7884
All bosses defeated 2 turbo hearts 2 subtanks
4723 2486 1324
All Bosses Defeated but no Leg/Body/Helmet/Buster/Heart/SubTank
2137 3188 8121
All bosses except Boomer Kuwanger and Sting Chameleon defeated.
2556 2582 7114
All bosses except Sting Chameleon defeated.
3475 5668 2581
All Hearts, all Sub Tanks, and all Armor Upgrades. No bosses defeated
3676 4667 5148
All powerups and armor upgrades, all bosses beaten the first time through.
3748 8612 5524
All Subtanks and Hearts, but no Armor & Weapons
5583 4618 5824
All Upgrades, All bosses defeated, 1 turbo heart.
4423 8832 7824
All Upgrades, and Chill Penguin and Storm Eagle defeated
6485 1146 2321
All Upgrades, but no bosses defeated
8141 2136 4426
All weapons, sub tanks, hearts, and levels completed
5778 8422 3577
Allyour powers, Sub Tanks, and Heart Takes at the first level.
4764 8768 7748
Arm Capsule only
5147 8437 4536
Armored Armadillo defeated
4764 5788 3748
Body Capsule only
5151 3427 4261
Boomer Kuwanger defeated
5286 7136 5124
Chill Penguin and Storm Eagle defeated
4768 7258 1871
Chill Penguin Defeated
2653 7248 6488
Chill Penguin defeated. No Dash Upgrade
5337 5377 4171
Chill Penguin, Storm Eagle, and Flame Mammoth defeated.
2147 5277 1281
Chill Penguin, Storm Eagle, Flame Mammoth, and Spark Mandrill defeated.
6431 5168 8171
Chill Penguin, Storm Eagle, Flame Mammoth, Spark Mandrill, and Armoured Armadillo defeated, Slide ability and Helmet capsule.
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.
In Mega Man X1, after defeating the final boss, wait around on the "Thanks for Playing!!" screen for about 45 seconds. At that time, the lights will dim and a TV will turn on in the background. It's a secret message from the recently departed final boss.