Drama, excitement, and moments that change people's lives are common in the tales of the largest slot machine winners. A fortunate player who won an incredible $39super slots app million on a Megabucks slot machine in Las Vegas is one example of such a profile. The biggest jackpot ever won on a slot machine at the time was set by this incredible win, which also made headlines. After just a few minutes of play, the machine glowed & the sounds of triumph filled the air, leaving the winner speechless.