The Japanese saw it as a great triumph. They traveled to the harbor knowing they can't come back, but knew their people would see them as heros. They saw the US as lazy and terrible people. An easy target. Their attack did devastate many, and hardly any there stood up to the Japanese. Almost proving their views on us.
But by seeing how they did that and thought we were "lazy" we just sent a nuke there and made them see us differently ;)