Also, players should think about utilizing bonuses and promotions that online casinos offer, as these can offer additional money or free spins that improve gameplay withgreentube slotsout incurring extra fees. Wins that Break Records. One notable example occurred in 2021 when a Norwegian player participated in Mega Moolah, a game known for its enormous jackpots, & won an incredible €72.7 million. In addition to making news, this victory cemented Mega Moolah's standing as one of the most profitable slot machines ever.