Louis
Louis is pretty slow. Transform to Louis EX as soon as you get hurt enough.

Thunder Punch:
10mp
Run+A
Power up your fist and punch several enemies.

Thunder Punch:
15mp
Run+J+A
Power up your fist and punch several enemies while in the air.

Thunder Kick:
10mp
D+J+>
Fly through the air, kicking a lot of enemies.

WhirlWind Throw:
15mp
D+^+J,J,J,J
Grab, swing around and throw an enemy.

Pheonix Palm:
30mp
D+A+>
Create shockwaves on both sides.

Tranform:
0mp
D+J+A
Bust out of your armor, which you can use as a weapon, and transform into LouisEX.