The last two days’ updates to the daily updates at SmashBros.com have given us a glimpse at both Pikachu’s and Link’s Final Smash (more about Final Smash here). Pikachu’s will initiate a giant…ball of electricity, which you will be able to move around for a short amount of time (hunt down players!), until it runs out of time and leaves Pikachu 
in a not-so-great state.
Link’s Final Smash, on the other hand, has the victim encased in a Triforce while Link bludgeons them with a sword, followed by a final swing which (I guess) does the most damage. This can be seen in the trailer for Brawl that was shown at E3 last year.