There are other methods to unlock these characters
but these are the fastest and easiest way to unlock SSBB characters.

Captain Falcon Have him join in SSE

Falco Complete 100-man brawl, or Have him join in SSE

Ganondorf Have him join in SSE

Jigglypuff Fight her in Swamp stage in SSE after completing it , or complete SSE then Events 1-20

Lucario Have him join in SSE, or Complete all 5 Target Tests with a character

Luigi Have him join in SSE, Complete Classic without continuing

Marth Have him join in SSE , or play 10 brawl matches (its easier i think)

Mr. Game & Watch Have him join in SSE

Ness 5 Brawl Matches(its faster), or Have him join in SSE.

R.O.B. Have him join in SSE

Snake Have him join in SSE, or Play 15 matches on Shadow Moses Island

Sonic Have him join in SSE, or finish SSE.

Toon Link Fight him in Forest stage in SSE after completing it, or After beating SSE, finish the Classic mode as Link

Wolf Fight him in Ruins stage in SSE after completing it, or Complete Boss Mode with Fox

80% of the characters here can get unlocked by doing SSE. so, its pain in the ass but its worth it -_-

If your that lazy, play vs mode for 450times and u can unlock all of it

Playing SSE is not easy, it's torturing.

There is a thread where users can ask how to unlock characters.
Feel free to post it there:

http://www.wiichat.com/brawl-charact...ck-thread.html