Free play refers to a specific type of promotion that is offered by some casinos, in which players are given a certain amount of money to use on certain games, usually slot machines. This money is not real money, but rather a form of "play money" that can be used to play the games but cannot be cashed out or withdrawn.

Yes, some free slot machine apps offer the chance to win real money. These apps often have in-app purchases or advertisements that generate revenue for the developers, and they might also have a system where you can earn virtual currency or tokens by playing the free slot games.

For real money slots, find Mega Joker at reputable online casinos, such as FanDuel Casino or Stars Casino, and sign up. FanDuel has opt-ins for table and live-dealer games, prize sweeps with huge prize pools, and a new-member offer.

The first reel line spins, and when it stops, you can hold down a combination on 0-3 reels. Click the 'Spin' button to continue. The remaining reels will spin and, if they hit any combinations, you will win. Ugga Bugga joins the ranks of other multi-spin games like Goblin's Cave and Tropic Reels.