Brawl help.

[silverstarman]

I heard it was to beat events 1-20 after beating the emmisarry.

[Luigison]

JIGGLYPUFF- 350 Vs. matches, or beat Event 20

Not sure if this is true (Event 20 looks a bit iffy) but it'd be worth a look, imo.

I didn't get him after beating Event 20.  I haven't completed all 1 through 20 though. 

Toon Link;
In the Subspace, play "The Forest" stage. Beat the first battle, and go through the first door you see.

Wasn't there for me.  All I got was a heart.  I don't recall what was there the first time, but maybe this only works after you've completed Subspace. 

[Suffix]

Did you beat any of them on Hard difficulty? I recall there being some events where you have to complete them on Hard to unlock something.

I have Jigglypuff now, and it definitely wasn't thanks to Vs. matches.

[MEGAߥTE]

See, I think a lot of these tasks require some sort of difficulty level, which nobody indicated.

[SushieBoy]

I didn't get him after beating Event 20.  I haven't completed all 1 through 20 though. 
Wasn't there for me.  All I got was a heart.  I don't recall what was there the first time, but maybe this only works after you've completed Subspace. 

you do Gotta beat Subspace. Same with Jigglypuff (Swamp Stage after beating giant Diddy Kong in the area of all those barrel cannons) and Wolf (Ruins Stage after that part with those crystals on the walls). those doors only appear after beating it.

[kirbyman]

Woops.

[Glitchy]

See, I think a lot of these tasks require some sort of difficulty level, which nobody indicated.

The only difficulty thing I did was unlocking Ganondorf. For the SSE characters, it doesn't matter.