Spawn monsters and kill all the bosses (which is really heartbreaking). Walk back and forth in the ruins to spawn monsters. When you brush to a certain level, you will enter a battle scene, but there are no monsters to fight, only a line of small words: However, no one comes. After the battle scene ends, you will find that the BGM becomes weird. At this time, the monsters in this scene have been cleared. After leaving the ruins, the system will remind you of the number of remaining monsters every time you save.

Add the dance method of the dance of killing

Always press the up and down keys at the same time