運うんゲー

noun

game of chance; luck-based game

Slang abbreviation of 運ゲーム. Used in gaming contexts to describe a game or situation where luck, rather than skill, determines the outcome.

• このボスは攻こう撃げきパターンがランダムで、完かん全ぜんに運うんゲーだ。

  This boss has random attack patterns; it's totally a game of chance.