You can't. Crazy Hand only appears in Boss Battles mode.
Sonic will appear during the final battle in the Subspace Emissary
Beat the subspace emissary
you cant but you can get him in subspace emissary
Those are stickers, and they're used to power up your characters in the Subspace Emissary. You can find them randomly in the Subspace Emissary, and they also appear in versus matches.
Beat Subspace Emissary then he appears
In the subspace emissary mode.
SSE is an abbreviation for Subspace Emissary, Super Smash Bros Brawl's adventure mode.
After you beat the subspace emissary, you have to go back to the swamp and there is another door there for you somewhere go to the ruins to obtain wolf, after beating subspace emissary.
Finish the subspace emissary mode.
A boss in the Subspace Emissary (Adventure Mode in Super Smash Bros. Brawl)
anything you wish my son
they increase certain stats on your characters in subspace emissary