Power Play, when it began in 2001, was drawn with a special wheel. In 2006 and 2007, MUSL replaced one of the 5× spaces on the Power Play wheel with a 10×. During each month-long promotion, MUSL guaranteed that there would be at least one drawing with a 10× multiplier. The promotion returned in 2008; the ball landed in the 10× space twice. After being absent in 2009, the 10× multiplier returned in May 2010 (after the Power Play drawing was changed to RNG.) The promotion was extended for the only time, as the 10× multiplier was not drawn until June 12. The second prize 5× guarantee continued; the 10× applied to all non-jackpot prizes, as in previous promotions.
During the middle of its four-year run, LA became a more traditional pick-6-of-54 game; unlike the first version, players got two games for $1. The jackpot odds actually became more "favorable" at 1 in 13 million per dollar; however, overall odds were much tougher, since four numbers were still needed to win the lowest prize tier. This version was entirely parimutuel.
Before the agreement, the only places that sold both Mega Millions and Powerball tickets were retailers straddling a border; one retailer on the Sharon, Pennsylvania/Masury, Ohio border sold both Mega Millions (via the Ohio Lottery) and Powerball (Pennsylvania) before the agreement and continued to be the only retailer to sell tickets for both lotteries.
On Oct 4, 2015, the Powerball format changed again; the white-ball pool increased from 59 to 69 while the Powerball pool decreased from 35 to 26. While this improved the chance of winning any prize to 1 in 24, it also lengthened the jackpot odds to 1 in 292,201,338. The 4+1 prize became $50,000; the 10x PowerPlay became available in drawings with a jackpot of under $150 million. Three months later, the format produced a $1.5 billion jackpot, double the previous record, after 20 consecutive rollovers.
In spite of the huge popularity of this lottery draw game it is still an unknown to many that you can buy Powerball tickets online, whether you are in the US or not. To be clear, this doesn’t even mean that you have to be a citizen of the US either. No citizenship & not based in the US? You can still play powerball online and buy lottery tickets online for a number of different lottery draw games.