Alright, this will be a pretty big post. First off, here's a third Brawl commercial:
http://wii.com/jp/movies/wii-cm-soft83/Now the rest of this info is from smashboards. Most of it is accurate, some of it may or may not be true.
Pokémon:
-Metagross - Definitely uses Earthquake
-Onix
-Garchomp
-Castform
-Gardevoir
-Regigigas - Starts out slow and gradually turns red, until it uses what they think is Crush Grip
-Latias & Latios - One comes out of a ball and calls the other one, then they zoom across the stage
Assist Trophies:
-Duster
-Rosalina/Rosetta - throws out star pieces for a few seconds, and that if you pick them up, you'll recover health. A Luma comes out with her.
-Sothe (SAZA) from Fire Emblem Series - because knives are banned, he attacks with a sumersalt kick instead
-Lakitu (JUGEMU)
-Group of Pegasus Knights from Fire Emblem Series - "they attack in a group or something, with a Falcon Knight"
-Jill Dozer ("drill girl with pink hair" but no doubt there)
-Birdo — Shoots eggs at an opponent. Pretty standard Assist Trophy. Oh, and he's fully rendered; it's not a 2D sprite like the Melee stage hazard. (needs confirmation)
-Tingle — Like the Nintendog or Mr. Resetti, Tingle doesn't inflinct any actual damage; he just stands there and does a little dance while shouting "Tingle-Tingle, Kooloo-Limpah," then disappears. I like to think of him as the Goldeen of the Assist Trophies. (needs confirmation)
-Raiden — I'm not a big fan of the Metal Gear Solid series, but I think this is Raiden (he's the guy with the white hair, right?) He just attacks with a sword before disappearing. Didn't seem very interesting to me. (needs confirmation)
Character Specific:
-Pokemon Trainer speaks for his Final Smash (meaning VO)
-Pit speaks for his Final Smash (meaning VO)
-Snake's Mine is remotely triggered not proximity based and damage ranges from 10% to 20%
-Fox is unable to move when he shoots his blaster in the air (may be referring to being able to turn around with your neutral B in the air maybe)
-Kirby is stronger than he was in Melee
- up air is weaker
- Kirby's new "Yo-yo dash" is mentioned, but they say he doesn't use "yo-yos" as one would expect. It's called "Break Spin" and it's from Kirby Super Star.) See it here:
http://www.gametrailers.com/player/26661.html at 1:38 & 1:42. Via Wikia: A break-dance style spin to stun the enemy directly
--- Can no longer escape from his back throw anymore.
--- His final smash not only sucks in enemies, but it sucks in nearby items as well. And when there are alot of the a single item that are sucked in, they can come out as the same item don't quite understand what he's saying here
---He was able to swallow some of the items and gain abilities from them. "The only item I got to see him suck up was the Fire Flower, which enabled Kirby to spit fire out (pretty identical to his Bowser hat in Melee)." Not all items can be swallowed for special abilities, though. (needs confirmation)
-Yoshi's Final Smash Fireballs EACH pack 25% of damage
-Wario's standard special move is a "Bite"; with it, you can "eat" an opponent and spit them out by pressing the special move button again (similar to Yoshi's Egg Lay). You can "eat" projectiles... if you eat a projectile without pressing the special move button again, Wario will eventually absorb it and recover a bit of health. You can also press the special move button to spit the projectile back out at your opponent. (needs confirmation)
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Items:
-Timer/Clock - Slows your opponents down, but it will sometimes flub like the hammer, and if that happens, YOU will slow down instead. So it's like grabbing "dynamite"!
-Soccer Ball - Cannot be countered or caught and it turns into fire when you kick it.
-Sandbag - When you beat him up other items come out
Music:
-BGM siege warfare, "the theme of Fire" and the fiery "Bern superpower" (placeholder, will correct to real english)
-Zelda's "Great Bay" song from Melee is selectable
-Brinstar BGM, Samus's Theme, and the Metroid Ending Theme were selectable on Norfair
-Two songs titled "Athletic" and "Ending BGM" were selectable on the Yoshi's Island stage
Stages:
-WarioWare Stage - It seems if you "pass" a mini-game, you heal a little bit
-WarioWare stage includes over 8 minigames, including "Don't Move"
Misc:
-Apparently, the lv.9 CPUs are still weak