Weapons - Zero and Axl have the ability to change the weapon they use. X does not have this abillity. His only weapon is the X-Buster.

Axl's Weapons
A-Bullet - Axl has this weapon when you obtain him. This is a rapid shot weapon that gives you the ability to transform into opponents.
Ray Gun - Obtained from Tornado Tonion - More powerful than A-Bullet but slower.
Double Bullet - Obtained from Flame Hyenard - Faster than A-Bullet
G Launcher - Obtained from Vanishing Gungaroo - Very Powerful Blast

Zero's Weapons
Z Saber - Zero has this weapon when you obtain him.
D Glaive - Obtained from Splash Warfly - Zero can do a triple slash with this .
V Hanger - Obtained from Wing Crowrang - Zero can slash nonstop which allows him to use a very powerful strike

Special Weapons - Axl and X share the same special weapons, but after finding the buster upgrade, X will be able to charge them. Zero does not have special weapons, instead he has techniques that you activate via certain button combos. Because Axl's and X's special weapons are the same, Axl and X will be grouped together.

Defeat Soldier Stonekong
Gaea Shield - X / Axl
Gokumonken - Zero

Defeat Tornado Tonion
Volt Tornado - X / Axl
Raijinshou - Zero

Defeat Splash Warfly
Splash Laser - X / Axl
Suiretsusen - Zero

Defeat Flame Hyenard
Circle Blaze - X / Axl
Bakuenjin - Zero

Defeat Ride Boarski
Moving Wheel - X / Axl
Zankourin - Zero

Defeat Snipe Anteater
Sniper Missle - X / Axl
Hieijin - Zero
Defeat Wing Crowrang
Wind Cutter - X / Axl
Souenbu - Zero

Defeat Vanishing Gungaroo
Explosion - X / Axl
Hadangeki - Zero