Akamaru is injured by a rival shinobi from another nation. The shinobi used a battle skill that spreads bacteria throughout the opponent's body, infecting the vicitim's mental faculties. This causes Akamaru to go into uncontrollable rampage!
Yeah, I know about that.
.أجل، أعلم ذلك
Ja, ich erinnere mich.
Sì, ne avevo sentito parlare.