Zelos

Zelos (ゼロス, lit. Zerosu) is a medal slot machine arcade game that was released by Namco in 1994 only in Japan; it runs on the company's NA-1 hardware, and the player must use two buttons to place a bet on which symbol the virtual spinning drum on their terminal's screen will stop on (the symbols in question include: a numeral 7, an orange, three groups of rectangular chips with the game's name on them, a trio of cherries, a bell with the manufacturer's name on it, a pair of plums, and a watermelon).