In the base game, Wild (Sevens) and Mighty Sevens symbols substitute for all symbols except for Scatters.
When the Mighty Sevens symbol is drawn on reels 2, 3 and 4, covering the whole reels, the Hold the Jackpot™™ Bonus Game is activated instead of paying out bet line wins.
All Bonus symbols stick to the reels during the Bonus Game. MYSTERY During the Bonus Game only Bonus symbols can be drawn on the reels. 3 Re-Spins are granted at the beginning of the Bonus Game. Each new Bonus symbol resets the number of Re-Spins to 3. The Bonus Game continues until Re-Spins are finished, or all reels are filled with Bonus symbols.