Okay first of all it's super smash bros brawl, and no, sadly you cannot unlock/play as Master Hand.
Yes,In stores and online
there are no codes, and it's 'BRAWL'
No you can not unlock the master hand in super smash bros.64
you can't get the Master Hand on Super Smash Bros Melee you must have action replay
Super Smash Bros., Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS/ Super Smash Bros. for Wii U, Super Smash Bros. Ultimate.
You can't
You can't.
no
Master Hand is not a playable character in the Super Smash Bros. series.
Super Smash Bros., Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. for Nintendo 3DS/Super Smash Bros. for Wii U, and Super Smash Bros. Ultimate.
Conker is not a Nintendo character and is not featured in any Super Smash Bros. title.
The "sequel" to Super Smash Bros. Brawl, in a way, is Super Smash Bros. for Nintendo 3DS/Super Smash Bros. for Wii U.