How do you unlock fierce deity link in super smash bros brawl?

Answer 1

There is no fierce deity link in SSBB, only Toon Link and TP Link. The easiest ways to unlock these two are through the Storyline, except you need to revisit the forest stage where you obtained TP Link and enter a secret door (Once the entire storyline is finished!) to unlock Toon Link. Otherwise, Toon Link requires something like 4000 battles.