Unlock X's Super Nova Armor from Megaman X4:
Highlight X at the 'Character Selection' screen and then press Up(2), Down(9). If the code has been entered correctly you will hear a sound as confirmation. Then press Circle.
Unlock Megaman's Ultimate Armor:
Highlight Megaman at the 'Character Selection' screen and then press Up(2), Down(9). If the code has been entered correctly you will hear a sound as confirmation and you will start the game with the Ultimate Armor and have it throughout the rest of the game.
The following is a list of each of the bosses and their weakness.
The Skiver - Dark Hold
Rock Monster - Tri-Thunder
Robo Mask - X-Buster/Z-Saber
Zero or X - F-Lazer/C-Flasher
Duff McWhalen - C-Shot/C-Sword
Izzy Glow - Tri-Thunder/E-Blade
Dark Dizzy - F-Lazer/C-Flasher
Mattrex - Wing Spiral/W-Shredder
Squid Adler - G-Shower/F-Splasher
Axle The Red - Ground Fire/Quake Blazer
Grizzly Slash - Spike Ball/Twin Dream
Sigma 1 - Tri-Thunder/Electric Uppercut
Sigma 2 - X-Buster/Z-Saber
Added by: Sanzano Feb 21st 2007, ID#14518