A mini-sized version of the Heisei era TV game "Dengeki Iraira Bou" and "Iraira Bou Puzzle Chain," plus two similar toys, though not "Dengeki." A total of 4 items. The black "Dengeki" requires batteries (AAA x 2), and the blue "Dengeki" uses button batteries (L1154 x 2) to operate, with sound effects when you fail. The orange and green ones were the type that delivered a current when you failed. However, they do not deliver a current now. All items are vintage. The black "Dengeki" makes sound, but the timer doesn't work. The blue one makes sound, but one side of the storage compartment for the "Dengeki" stick is broken. Please understand these are recycled items and consider their condition when purchasing.