Big Fin Bay — Bonus Features
Expanding Wilds that swallow entire reels. Mystery Wilds that appear uninvited. A Bonus Game that unlocks 117,649 ways. Simple mechanics — explosive math when they combine.
All Features
Expanding Wilds
TriggerWild symbol lands on any of the variable-height reels during any spin. Automatically expands to cover all visible positions on that reel.
Mystery Wild Feature
TriggerRandomly activates during any spin. Mystery Wild symbols appear as blank question-mark tiles that reveal as Wilds when the spin resolves.
Bonus Game with Expanded Ways
TriggerLand 3 or more Scatter symbols (Golden Fish) on any positions. 3 = 10 spins, 4 = 15, 5 = 20, 6+ = 25 spins.
Variable Reel System
TriggerActive on every spin. Reel heights change between spins based on symbol landings and cascade mechanics.
Buy Feature Options
| Option | Cost | RTP | Avg Return | Risk |
|---|---|---|---|---|
| No Bonus Buy Available | N/A | 96.14% | N/A | N/A |
Trigger Probabilities
Base Game
Expanding Wild (single reel)~1 in 10 spins
Expanding Wild (two reels)~1 in 60 spins
Mystery Wild feature~1 in 25 spins
Bonus Game (3+ scatters)~1 in 180 spins
Win Milestones
Any paying spin~20%
Mystery Wild + natural wild combo~1 in 80 spins
Bonus return over 300x~1 in 12 bonus rounds
Max win (15,040x)~1 in 4,000,000 spins