Mega Man X Collection Cheats

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.