I will tell you about the update of Super Smash Bros. Brawl

Here's whar's here so far

Characters

Mario, Link, Kirby, Pikachu, Samus, Fox, DK, Yoshi, Zelda, Bowser, Peach, Ice Climbers,

Pit, Wario, 0 Suit Samus, Meta Knight, Snake, Diddy Kong, Poke' Trainer, Ike,

Lucas, Sonic, and King Dedede

Assist Trophies

Andross, Lyn, Hammer Bro, Nintendog, Dr. Wright, Samurai Goroh, Devil,

Knuckle Joe, Mr. Resseti, Excitebike, and Little Mac

Items

Gooey Bomb, Smoke Ball, Poke' Ball, Assist Trophy, Cracker Launcher, Crates,

Barrels, Banana Peel, Superspicy Curry, Bumper, Pitfall, Franklin Badge, and Golden Hammer

Pokemon

Groudon, Piplup, Meowth, Deoxys, and Munchlax

Stages

Battlefield, Delfino Plaza, Bridge of Eldin, Lylat Cruise, Yoshi's Island, Smashville, Rumble Falls, Skyworld, Castle Siege, WarioWare, Pokemon Stadium, Battleship Halberd, Shadow Moses Island, New Pork City, and PictoChat

Have a nice day! :-)