After destroying the colony (make sure Zero does not become Maverick), go to the third Maverick stage with either X or Zero. Start the game with X and make sure you have the Fourth Armor. He can destroy viruses, take less damage, and inflict more damage. To make Zero stronger, get the capsule in the third Zero stage (where X's Ultimate Armor is located.) Zero will become black. It stops the lasers and gives you time to get through everything. | Submitted by DayleJ
At the first stage where all the green lasers that can kill you instantly are, use Dark Hold. The following is an easy way to get through the first of the three Zero Stages. The red and green eyes are weak to C-Shot, the blue eye is weak to Ground Fire, and the nose is weak to Goo Shaver. | Submitted by DayleJ The Boss of the second of the Zero Virus Stages (the big face from Megaman X) has three weaknesses. If you keep hitting him constantly, the battle will be over in less than 30 seconds. It just does not paralyze him, so you can hit him again sooner. Izzy Glow's weakness is the Tri-Thunder, but the C-Sword does more damage. Yolu will have to guess whether he will move up/down or to the side. | Submitted by DayleJ You can do this either under him or beside him. If timed correctly, Dark Dizzy will move into the tail of the laser, but your laser will not be used up. Guide it under him, then have it turn around and go the other way. Shoot the F-Laser with X standing at the center of the screen. This is very helpful, as it also works on walls. Hold Dash and perform a jump to automatically do a Dash Jump. Use the following trick to reach a high ledge or jump to the next wall. Be careful with Sigma, as he keeps moving around. Keep using that attack, which is unlimited.
Use the Gala attack with the Ultimate Armor to have the best weapon that defeats most Bosses, including Sigma (both rounds). Defeating second Zero Virus stage Boss.