Bowser

Mario and Luigi's archest enemy of them all. Repeatedly tries to kidnap Princess Peach and take over the Mushroom Kingdom.

Paper Mario Stats
Max HP:
 * Round 1: 50
 * Round 2: 99
 * Round 3: 99

Attack Power:
 * Round 1: 3 (Ring Attack, Mario's Partner), 4 (Ring Attack, Mario), 6 (Claw Attack), 8 (Fire Breath)
 * Rounds 2 and 3: 3 (Ring Attack, Mario's Partner), 6 (Ring Attack, Mario), 8 (Claw Attack and Jump Attack), 10 (Fire Breath and Lightning Slam)

Defense:
 * Round 1: 1
 * Round 2: 2
 * Round 3: 2

Tattle:
 * Round 1: It's the Evil King Bowser! Finally, after all this time! He has a huge arsenal of attacks, from blowing clouds of fire to jumping on us. Fire Attack: 8, Stamp Attack/Nail Attack: 6 I'm sure he has other attacks that I don't know. Boy, does he look nasty! He's strong enough as it is, but I'm sure he can use that Star Rod to increase his power until he's nearly invincible. Princess Peach needs us! Let's take him, Mario!
 * Round 2: It's the Evil King Bowser! Uh... I think he got bigger. That's not a good sign... He has a huge arsenal of attacks, from blowing clouds of fire to jumping on us. Fire Attack: 10, Stamp Attack/Nail Attack: 8 I'm sure he has other attacks that I don't know. Kammy Koopa's mysterious device has somehow beefed up his power even more. That's hardly fair! You should use that Star Beam whenever he uses the Star Rod to increase his power. Oh, you already knew that?
 * Round 3: It's the Evil King Bowser! No more messing around! He has a huge arsenal of attacks, from blowing clouds of fire to jumping on us. Fire Attack: 10, Stamp Attack/Nail Attack: 8 I'm sure he has other attacks that I don't know. When he increases his power with the Star Rod, our attacks will be totally useless. When that happens, you must use our ultimate weapon, the Peach Beam!  It has the power of everyone's wishes! This is our time, Mario!  Let's take this chump!  We're coming, Princess!

Paper Mario 2 Stats
Glitz Pit Battle

HP: 30

Attack: 3

Defense: 1

Palace of Shadow Battle

HP: 70

Attack: 7

Defense: 2