Play Monster Disco XtraHold at HelloMillions, and enjoy a high volatility slot game by Swintt. A resourceful game guide outlining rules and. %. With a quite balanced math and the possibility. Bodog Casino offers an inviting plus games including a fully launched division for Sports, Poker and Horses. Return to player. GamesandCasino is a comprehensive online gambling guide filled to the brim with new and reputable online casinos, slot game reviews, bonus offers and much. Try Monster Disco XtraHold slot online for free in demo mode with no download or no registration required. . Monster Disco XtraHold offers % return, High dispersion and x win potential, max win. GamesandCasino is a comprehensive online gambling guide filled to the brim with new and reputable online casinos, slot game reviews, bonus offers and much. Game Type.