Samurai battles of the 14th-16th centuries in Japan frequently started with rock throwing, as evidenced by historical records of injuries sustained from this tactic. These documents highlight rocks as a significant cause of casualties.

Even renowned swordsman Miyamoto Musashi was reportedly injured by a thrown rock, impacting his participation in a major battle.

This suggests that rock throwing played a surprisingly important role in the opening stages of many samurai conflicts. The provided episode offers insight into this often overlooked aspect of early Japanese warfare.