Various Joker Gadgets: Razor-sharp playing cards, acid flower, various guns and other weaponry. The Joker was unpredictable in that he would use any kind of weapon afforded him.
Joker's Joy Buzzer: The Joker often used a modified novelty joy buzzer strapped to the palm of his hand. The buzzer administered a lethal dose of electricity into anyone who came into contact with it.
Explosives: Joker was an expert at bomb making and even bought nuclear weapons. He loved using time bombs and used grenades in battle, though they may be disguised as harmless objects like toys, dolls, balls or marbles.