I know by breaking the pieces I can enter the whale boss level. I was trying to enter the heart boss level. I collected the three color pieces and defeated the boss of the third level, but did not enter the fourth level, the heart boss level. I already pass with the three original characters to unlock the fourth level with heart as the boss.
我知道通过打破碎片，我可以进入鲸鱼的BOSS关。我是想进入心脏BOSS关。我收集了三种颜色的碎片，打败了第三层的boss，但没有进入第四层，即心脏boss层。我已经通关了三个原始角色来解锁心脏。