If anyone is still playing
Paper Mario and the thousand year door well I've got a few secrets...
With Flurrie, make sure she is on her final level.
make sure you have Charge P equipped
In battle, have Flurrie charge as much as you want.
Then use Lip Lock.
depending on how many turns you charged up, it can do massive damage.
The best thing about Lip Lock, is that it penetrates defenses, so go ahead and use it on armored enemies
To level up easier:
Defeat Atomic Boo before hand.
go to the area where you find Amazee Dazee's
Make sure Flurrie is on her final Level.
Make sure you have ALL of the Crystal Stars.
When you encounter an AD, have Flurrie attack first, and use Lip Lock on the AD.
When its your turn, use Supernova on the enemies.
Make sure you've maxed out the power of Supernova.
It should KO the AD before it runs off.
to repeat go to Creepy Steeple and flight boos for star power. (must have defeated Atomic Boo)
for more star power, equip the unsimplifier badge if you want to save more time.
Lather, rinse, repeat.