13 Bosses You Actually Go Inside And Defeat

MONSTRO (KINGDOM HEARTS)

Monstro is probably the largest baddie in this entire list. He’s so large, in fact, that his insides have served as an entire world in and of themselves in Kingdom Hearts. He’s even appeared as a subword in Chain of Memories and Dream Drop Distance, while he was also a boss fight in Birth by Sleep Final Mix (though that time we fought him from the outside).