Once Rocky defeated Blackbeard, he felt his bloodlust not dying down at all as he could not calm down after that blood pumping fight that he just had.
As if turning into a demon possessed, he looked for the next strong opponent that he could face to possibly continue feeling this rush of beating death, however, as he started to look for the next opponent, the ship and his surroundings began to fade away into small granules of dust as if they were never real matter and were just an illusion from the start.
Soon, he returned to the fluffy feathery room where he once was, while the injuries that he suffered over his body during the fight against Blackbeard began healing rapidly as if they were fake too.
To him it felt like he had just cleared a game stage and he had been returned to the previous floor after the boss raid was over, However, this was the real world and not a game, which made the fight he experienced all the more bizarre.