Found the answer this morning on Serebii.net. In the U.S., the password for the Banette is NPCHARACTER. Enjoy!
Banette is the marionette pokemon.
Banette does not evolve.
Banette does not evolve. It is the evolution of shuppet.
Banette is a Ghost type pokemon.
Baltoy does not evolve into Banette; it evolves into Claydol at Level 36. Shuppet evolves into Banette at Level 37.
Shuppet evolves at level 37 into Banette.
No; Banette only appears at nighttime.
Wild Banette can be found in Sky Pillar.
you f*king bastards my banette did evolve!!!
Paule Banette has written: 'D'UN CERTAIN SILENCE'
Banette wouldn't evolve at any point in Pokémon Emerald because it can't evolve in Emerald.
Banette is #354 in the national pokedex, and it is a Ghost type Pokemon.