My Toon Link has a special pattern which counters all approaches and forces you to wait for a very small opening, but then again, that's what I predict and I can stop that from happening, sometimes anyway, so therfore it's a pure Game Over right there, that's if it is Final Destination. or any stage with hardly any platforms to protect you from the bombs and boomerang from above, it's pretty much the boomerang messing you all up you know, simply just grab the bombs and copy what Toon Link is doing to counter his pattern.
Keep him in the range of his own bombs and explosions and you should be able to win, simple.
Though spacing can be a problem there...