Goo knows 4 fighting styles Street Fighting, Weapon Mastery, Kendo, Batto. Goo is very unpredictable and uncaring. Most of the time he seems like an easygoing guy. When fighting. he maintains this easy going manner, he don’t got a serious bone on his body but he is very violent and sadistic. Whatever tools he grabs becomes a weapon meant to kill the enemy. has Katana.