777 Super BIG BuildUp II Double Deluxe Demo Slot by Crazy Tooth Studio Free Play

777 Super BIG BuildUp II Double Deluxe is an online Slot from Crazy Tooth Studio.

Quick Facts

- Layout: 5 reels (3-4-4-4-3)

- Paylines: 576 ways fixed

- Key mechanics: Any Adjacent Pays, BIG BuildUp Feature, Double Deluxe Prize, Reel Duplication

- Special symbols: Triple 7, Wild Chip, Multiplier Coin, Diamond, Scatter

How the Game Plays

777 Super BIG BuildUp II Double Deluxe is a high-energy sequel from Crazy Tooth Studio that blends a futuristic neon city aesthetic with classic Vegas-style fruit symbols. The game utilizes an unconventional 3-4-4-4-3 grid and the "Any Adjacent Pays" system, which allows winning combinations to form anywhere on the reels as long as three or more matching symbols land on adjacent columns. The symbol set features traditional icons like lemons, cherries, watermelons, and various BAR symbols, alongside the high-value red sevens.

Double Deluxe Bonus Spins Explained

The free spins round is triggered by landing three or more scatter symbols. During these spins, players can encounter special Casino Chip symbols that unleash persistent wilds. These wilds expand the reel size for the remainder of the feature and move down one position with each spin until they disappear from the bottom of the grid. Additionally, Diamond symbols can appear to trigger reel duplication, providing extra opportunities for matching combinations.

BIG BuildUp & Double Deluxe Feature Explained

The core mechanic centers on the "BIG BuildUp" system, where specific symbols accumulate above the reels to enhance future payouts. Poker chips add potential wilds, coins contribute to multipliers up to 5x, and "Triple 7" symbols increase the value of the Double Deluxe Prize. This accumulated potential is unleashed randomly through the Double Deluxe feature, which can award extra wilds, multipliers, or the primary prize itself. The Reel Duplication mechanic, triggered by diamonds, can even copy entire columns to create up to 7-of-a-kind wins.

Click the Play for Free button to load the 777 Super BIG BuildUp II Double Deluxe demo, test its features and payouts and decide if it is a game you enjoy.