The premium fruit machine symbols pay 0.33x your stake for 3 of a kind and 0.73x for 5 of a kind. By landing matching symbols anywhere on adjacent reels, you win. The Wild symbol substitutes for all pay symbols to help complete wins. A passive non-paying symbol is also collected above the grid and is used when the Big BuildUp feature is triggered:

At least one of the accumulated extras is awarded when the BIG Build Up feature triggers randomly. It is possible to win the Deluxe Prize up to 3,000 times your stake, and you can also get a multiplier added to it.  You can use the multiplier to boost a regular win if you don't trigger the Deluxe Prize. You'll receive as many wilds as you've accumulated, and each wild will create one extra row. You trigger the Super Deluxe Bonus Round when 3, 4 or 5 scatter symbols appear anywhere in view, and this gives you 5, 7 or 9 free spins. Each free spin generates an extra row on the relevant reel(s) when at least one wild chip sticks.

We get to see a BIG BuildUp trigger after a bit of base game grinding, and then we trigger the bonus round at 1:30 into the 3:51-minute highlights video. Wilds move down one position per spin until they drop off the bottom of the grid, and the bonus round cannot be retriggered.The 200 Spins 777 Super BIG BuildUp Deluxe Slot Experience you get to see a BIG BuildUp trigger after a bit of base game grinding, and then we trigger the bonus round at 1:30 into the video. At the end of the feature, you can see for yourself how many wilds we landed and how much we expanded the grid. To get started, click the play button below! At first glance, we were expecting 777 Super BIG BuildUp Deluxe to be another run-of-the-mill fruit machine, but we were pleasantly surprised. You get a Pachinko-inspired cascade of tumbling wild chips in the bonus round, which is quite pleasing to the eye. It all combines to create a visual experience that is out of the ordinary, and the grid expands as you expand it. 

The BIG BuildUp cycles keep the base game interesting, and the x5 multiplier can be used to crack the 15,000x win cap on the Deluxe Prize. As a result, Lucky Clucks BIG BuildUp offers a balanced and highly entertaining experience.

With the fruit-themed 777 Super BIG BuildUp Deluxe online slot, you could win up to 15,000x your stake. This 5-reel game has 576 ways to line up symbols for a win, and you can collect extra prizes from an exciting BIG BuildUp feature.

A multiplier, accumulated wilds, and an increasing Deluxe prize worth up to 3,000x drop from symbols above the reels. Wilds help complete wins during free games by building extra rows and sliding down reels.

Since 777 Super Big BuildUp Deluxe is an unpredictable slot, its high volatility is understandable. It is impossible to predict when the BuildUp feature will occur or which feature it will be. Free spins with volatile payouts are no different. You can get even more chances to win during free games by growing a massive board with sticky wilds. Payback is about average for the industry. More than 40% of the slot's RTP comes from features and free spins.