A 'Progressive' is a Jackpot that accumulates value, or 'progresses', as the game continues. A Jackpot consists of a fixed minimum amount of money that increases by a percentage of incoming bet amounts.
The Jackpot symbol (shown here) is linked to three Progressives: Mini, Midi and Maxi. An amount for each is displayed above the Payouts box. Which Jackpot is won depends upon the number of Jackpot symbols appearing in the winning cluster.
In the "Jackpots" window (upper left of the game area) the number preceeding the name of the jackpot (Mini, Midi, Maxi) refers to the number of symbols needed to win that prize.
When the Jackpot is won the prize fund is reset to its minimum amount and the process starts again.
Important points to note about Jackpots: