X's Ultimate armor
Highlight X at the player selection screen. Press [Circle]x2, [Left]x6, then hold [L1] + [R2] and press [Start]. Note: Hold [L1] + [R2] until game play begins at a screen with all the Bosses. Complete the first level and go to the spider stage. Go to the part with a spike spinning on platform. Go down to space below and go all the way to the right. The UA capsule with the armor will be there. Note: For the Japanese version, press [X]x2, [Left]x6, then hold [L1] + [R2] and press [Start].

Zero's black armor
Highlight Zero at the player selection screen. Hold [R1] and press [Right]x6. Release all buttons, then hold [Circle] and press [Start]. For the Japanese version, hold [R1] and press [Right]x6. Release all buttons, then hold [X] and press [Start].

Animation sequences
Begin game play and leave the game unattended for approximately ten minutes. Megaman and Zero's animation sequences will eventually being to play.

Megaman's Ultimate Armor and Nova Strike
Enable the "Megaman X's Ultimate armor" code. Play through the first two introduction stage, then start the Jungle stage. Go halfway down the second waterfall and go to the right. Enter the capsule and to get the Ultimate Armor along with Nova Strike and the aerial attack.

Unlimited lives for Megaman X
Begin game play on the Frost Walrus stage in Area 1. Go to the section where the ice passages disappear. Turn to the left and get the extra life. Repeat the process to collect as many lives as needed.

Chill Penguin appearance
Go to Frost Walrus' stage and proceed to the mid-Boss. You will see Chill Penguin frozen in an ice cube. Also, If you look closely in the background, you will see that the wall was broken. This is the exact stage in Mega Man X for Chill Penguin.

E Tank
To get one of the E Tanks, go to the Cyber level and get the S rank. To do this, jump on the platform that does not have an enemy.

Go to Ray's stage area 2. Survive until you see two boxes, a space, and one box. In that space is the other E tank.

W Tank
Go to Snow Base area 2. Destroy all of the ice blocks until you reach a platform that leads you left or right. Go left and destroy the ice blocks. You will eventually find the W tank.

Huge heart container
Go to Frost Walrus' stage and go to the end of the first part where you are sliding on the snow that crumbles. Climb up the wall and you should see a container that looks like a huge heart. If you are using X, use the Web Spiders ability when you are on the wall then use your boots to float over to the web. Then, jump onto the ledge were the heart is located. If you are using Zero it will be more difficult. Go to the same part of Frost Walrus' stage and climb the wall. When you are at the top, use the Double Jump ability to make it on to the platform with the heart.

Spark Mandrill appearance
Start Frost Walrus's stage and look closely in the background. A big frozen Ice block frozen like Spark Mandrill.

Buffalo appearance
Get to the halfway Boss in the Frost Walruses stage to see the Buffalo from Megaman X3 in the background.

Enigma appearance
Go to web spiders' area. In the background you can see the Enigma from Megaman X5.

Frost Walrus stage: Easy heart
An easy way to get the heart is to shoot upwards with the Magma Dragoon Flame Upwards ability.

Fast shots on bike
To shoot fast shots on the bike in Jet Stingray's stage, quickly tap [Square], Triangle repeatedly. If done correctly, you should do a double quick shot.

X: Secret weapon with the Jet Stingray attack
As X, when you use the Jet Stingray attack, you can press [Down] whenever you want to make it go down. When you press [Down] with the huge stingray attack (requires the plasma shot or the other arm upgrade), it goes across the screen while shooting smaller attacks vertically north and south. You can also shoot large boss attacks if you have a arm upgrade (plasma or the other one).

Defeating Slash Beast
First, defeat the Stingray and use his weapon in the battle. Shoot him once, then jump over him, turn, and fire again. Repeat this until he goes down.

In order to kill Slash Beast as zero, use this multiple combo technique. Rapidly press [Forward] while rapidly pressing "Saber" at the same time. You will only do the first two hits of Zero's full attack, but the Slash Beast is effected even if he is flashing with the first two hits of Zero's attack. That will lower his health quickly.

Defeating Web Spider
As Zero, use Ryuenjin after if you have Kuuenbu jump and slash him for an extra hit.

To make the Web Spider fall down, use the Twin Slasher weapon on his web that is supporting him. Make sure that both of them hits it. He will fall down and be wide open for an attack.

Easy helmet upgrade
Go to the Cyber Peacock stage. Get a rank "S" on the third section. This can be done easily by using the Soul Body (Split Mushroom's weapon) periodically. You can kill the floating eye balls.

Flying boots, body armor, Nova Strike upgrades
If you are Dark Mega Man, get the upgrade on the Web Spider's stage and you will get the flying boots, body armor and Nova Strike (a very powerful blast).

Defeating the Spider Boss
When you get to the Spider Boss, dash slide away to dodge his webs, then jump over it.

Defeating the General
Use the twin slashers (Slash Beast weapon) to defeat him.

Defeating the Colonel
Use the ice attack with Zero, not on top of him, but directly next to him. It does the most damage.

Defeating Cyber Peacock
To defeat him with Zero, use the Z-Saber Enhancement (Ryuenjin attack) you get from defeating Magma Dragoon.

Defeating Double
When you reach Double, use the Double Cyclone.

Defeating Iris
When the huge diamond object comes out of her, use the fire attack on her with Zero.

Defeating Magma Dragoon
When you get the armor suit at area 2, get in and continue normally. When you get to the part where you have to jump higher than the suit allows, do not get out. Instead, go in the lava and move forward as quickly as possible, breaking the box things in front of you. You will begin the battle with Magma Dragoon in the suit. Attack him until the suit explodes. By this time, his life should be low. Then, finish him off.