• Min stake: 25p
  • Max stake: £50
  • Max payout: £250,000 
  • Jackpot: No
  • Paylines: 256 up to 10,000
  • Special features: Expanding Reels, Super Bombs, Free Spins

Dive into action-packed wins up to 4,300x your bet.

Fire up your prize potential when you tap the Super Bombs and activate the Expanding Reels. Enjoy up to 6 Free Spins and boost your gaming session.

Ready to have a blast on the reels? Play Big Bang Boom online today.

You can also check out more of our online slots and games here. 

Bonus Features 

Expanding Reels

Every spin starts with a 4-reel, 4-row gaming grid. When symbol matches occur around the edges of the gaming grid or bombs explode, you can expand the grid. This way, you can add 3 rows to both the top and bottom of the gaming grid during the main game. When you unlock all 10 rows, you progress to the bonus game for 6 Free Spins. In Free Spins, the Expanding Reels Feature lets you add 2 reels to the left and right sides of the gaming grid, up to 8 reels.

Super Bombs

Vertical Bombs, Horizontal Bombs, Diagonal Bombs, and Plus-pattern Bombs may land on the reels during the main game and Free Spins. Persistent Bombs may only appear in Free Spins. Omni-directional Bombs and Cluster Bombs may explode in the main game, during Free Spins, and in the Treasure Prize Feature. Bombs explode after the bet way wins pay out and before an Avalanche.

The types of bombs include:

  • Vertical Bomb – Explodes vertically to remove adjacent symbols to the top and bottom of its position.
  • Horizontal Bomb – Explodes horizontally to remove adjacent symbols to the left and right of its position.
  • Diagonal Bomb – Explodes diagonally to remove symbols adjacent to the corners from its position.
  • Plus-pattern Bomb – Explodes like a cross to remove symbols adjacent to its position on the top, bottom, left and right.
  • Omni-directional Bomb – Explodes along with all symbols adjacent to its position to remove all touching symbols.
  • Cluster Bomb – During the main game, it randomly explodes 3-5 brick-covered positions. In Free Spins, it explodes 3-5 positions not occupied by other bombs.
  • Persistent Bomb – Only activates in Free Spins. It explodes along with all symbols adjacent.

Free Spins

Expanding the gaming grid to 10 rows triggers 6 Free Spins. Here you can expand your reels by 2 on both sides, and only 1x multiplier symbols, and Super Bombs may appear. Prizes landing on the gaming grid remain there till the end of Free Spins, and prize values are multiplied by up to 2,048x when a bomb explosion covers its position.

For information on symbols and base game instructions, please see in-game help menu. 

Malfunction voids all plays and pay. RTP = 95.08%.