Big Bang 2 — Bonus Features
Big Bang 2's bonus features explained. Check the game rules for detailed mechanics and trigger conditions.
All Features
Expanding Reels
TriggerWinning cascade chains expand the grid. Each successive cascade adds one row to the reels, growing from 5x3 up to 5x10 maximum.
7 Bomb Types
TriggerBomb symbols land randomly on any position during base game or Free Spins. Each of 7 bomb types has a unique effect.
Avalanche Mechanic
TriggerAutomatic after any winning combination. Winning symbols disappear, remaining symbols fall to fill gaps, new symbols cascade from above.
Free Spins + Treasure Prize
TriggerLand 4 or more Scatter symbols anywhere on the grid. 4 = 8 spins, 5 = 10, 6 = 12, 7+ = 15 spins.
Bonus Buy
TriggerPlayer purchase. Costs 75x bet for standard Free Spins entry.
Buy Feature Options
| Option | Cost | RTP | Avg Return | Risk |
|---|---|---|---|---|
| Bonus Buy | 100x | 96.07% | ~70x | High |
Trigger Probabilities
Base Game
Any bonus trigger~1 in 150-200 spins
Premium featureRare — check game info
Win Milestones
Any paying spin~25-35%
Win over 10x~1 in 40-60 spins
Win over 100x~1 in 800-2,000 spins
Max win (4,300x)Extremely rare