BUBBLE BILLIONS

Wizard of Oz released a collection system using play and virals that may award a progressive jackpot

Wizard of Oz introduces Bubble Billions on app-entry, a new feature to pop bubbles for a chance to play a mini-game and win big (image1).
The Bubble Billions feature includes a progressive jackpot with the current jackpot amount visible from the lobby screen (image 2).
Bubbles are won in any machine by spinning. A bet up dialogue states, ‘Bet More to Earn More BB’ when any bet changes occur (image 3).
Players may send and receive bubbles as gifts, accepting up to 20 each day (image 4).
Once a bubble is won, players ‘Tap’ to reveal the prize (image 5).
Bubbles may reveal a Dorothy mini-game to find Ruby Slippers for the progressive jackpot or coin prizes. In this example, $0.05 worth of coins was won by popping a bubble gift (image 6).

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