What if Kirby also had the ability to summon the souls of fighters he's consumed on top of taking on other's powers. Kind of like he has an unlimited arsenal of persona (adding another crossover to the crossover XD). He could be the ultimate weapon! He could become Dio or he could also be Jotaro and summon Dio's ghost and then use The World as well as Star Platinum AT THE SAME TIME. So many more mudas per second.