Donīt remember the Bomber-fight, too, though I remember the Greed Island-end.
To be honest, the Bomber, or rather Genthru, always felt rather random to me. Just why is he that strong in active battle? And he has no direct relation to Gon, not even any build up. Though, of course, all that is excused by the fact that this Greed Island-arc isnīt really about defeating this villain. Itīs about Gingīs game.