Big 5 Cats I believe to be a clone of both Pyramid Progressives and Big 5 Safari, or if not an identical clone, the games all play in a very similar fashion. Unlike many video slots, there isn't a separate bonus game although there is a "Progressive Feature" which is triggered by Filling the Screen with the same premium symbol.
Premium symbols are stacked and before each spin, a feature known as King Stacks takes effect which means that one particular symbol is chosen and placed on the reels giving you a better shot to Fill the Screen with that symbol. Similar to "The Dream" and other classic slots, premium symbols can appear in both single and double forms. Finally, special stacks of 5x multiplier symbols are also available and can multiply your win up to 625x for a massive Jackpot or at least a Big Win!
The Progressive Feature is triggered by landing a Full Screen of the same premium symbol, whether that full screen consists of single symbols, double symbols, or 5x multiplier symbols or any combination of them. Upon doing so, you may randomly be awarded the particular Progressive associated with that premium symbol in addition to the payline wins, with each bet level having its own associated progressive.
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