Big Bonus Booster

Play Big Bonus Booster slot game & pay with phone credit at Pay By Mobile Slots

What Is Big Bonus Booster?

Big Bonus Booster is an online slot developed by Inspired. The game is played on 6 reels with 50 paylines, offering a blend of standard spins, bonus rounds, free spins, a gamble feature, and an optional Fortune Bet mode. Players can bet as little as £0.10 or up to £5.00 per spin.

How Do the Symbols and Payouts Work?

Payouts in Big Bonus Booster are dependent on your current stake, with winnings awarded for matching 3, 4, 5, or 6 symbols on adjacent reels starting from the leftmost reel. The paytable is as follows (at a typical stake):

• Red 7: 6x - £15, 5x - £5, 4x - £2, 3x - £0.50
• Crown: 6x - £20, 5x - £6, 4x - £2, 3x - £0.50
• Wild: 6x - £250, 5x - £15, 4x - £4, 3x - £1
• Plum: 6x - £8, 5x - £3, 4x - £1, 3x - £0.20
• Watermelon: 6x - £8, 5x - £3, 4x - £1, 3x - £0.20
• Silver 7: 6x - £10, 5x - £4, 4x - £1.50, 3x - £0.40
• Blue 7: 6x - £10, 5x - £4, 4x - £1.50, 3x - £0.40
• Cherry: 6x - £5, 5x - £2, 4x - £0.50, 3x - £0.10
• Lemon: 6x - £5, 5x - £2, 4x - £0.50, 3x - £0.10
• Orange: 6x - £5, 5x - £2, 4x - £0.50, 3x - £0.10
• Grapes: 6x - £5, 5x - £2, 4x - £0.50, 3x - £0.10

Only the highest winning combination per payline is paid, but wins on different lines are added together.

What Does the Wild Symbol Do?

• The Wild substitutes for all other symbols except the Bonus Scatter.
• Wilds appear on all reels in the main game, and only on reels 2, 3, 4, and 5 during Free Spins.
• In Free Spins, any Wild that lands remains locked in position until the feature ends.

How Do Win Lines Pay?

• There are 50 paylines active at all times.
• Winning combinations form on adjacent reels, from left to right, starting with the leftmost reel (except Bonus, which has its own mechanics).
• On each payline, only the highest win is awarded. Winnings from different paylines are accumulated.

How Is the Big Bonus Triggered?

• Bonus symbols can appear on all six reels in the main game.
• Three or more Bonus symbols anywhere on the reels will activate the Big Bonus feature.
• The starting Big Bonus value is defined by a pick-me round, based on the number of Bonus symbols:
  • 3 Bonus: 20X, 25X, 30X, 50X, or 100X
  • 4 Bonus: 25X, 30X, 50X, or 100X
  • 5 Bonus: 30X, 50X, or 100X
  • 6 Bonus: 50X or 100X

How Does the Big Bonus Match 3 Pick Me Work?

• After triggering the feature, you are presented with 6, 9, 12, or 15 identical tiles, depending on how many Bonus symbols activated the round.
• Pick tiles to reveal Big Bonus gems—matching three identical gems will set your starting Big Bonus value for the bonus round.

How Do Free Spins and Booster Gems Function?

• The Big Bonus trail starts from the result of the pick-me round.
• Booster gems, landing specifically on reel 6, add to the trail meter.
• Fill the current active segment of the meter with Booster gems to improve your Big Bonus value.
• During Free Spins, only gems for the current trail level appear on reel 6.
• Wilds that appear during Free Spins are locked in place for the duration of the feature.
• Free Spins continue until a single win equals or surpasses the current Big Bonus value.

What Is Fortune Bet Mode?

• Activating Fortune Bet increases the chance of entering the bonus feature by 50%.
• The main game payouts, entry values, and thresholds remain exactly the same as they do when Fortune Bet is off.

How Does the Gamble Feature Operate?

• The gamble feature can be set to: always on, only when winnings are at least 5x the stake, or off.
• When eligible, the gamble presents two wheels:
  • The left wheel allows for the chance to increase winnings by half, double, or triple.
  • The right wheel grants the opportunity to gain direct entry into the Big Bonus round; the win value can be customised.
• Lands on green: the relevant prize or bonus is won. Lands on red: winnings are forfeited.
• Gambling winnings is possible up to a maximum of 2500x base stake or £50,000 (whichever is lower).
• A maximum of 6 Scatters can be obtained during the bonus wheel gamble.
• At any time, you may choose to collect your winnings.
• The anticipated payback for the gamble is visible in the game.

What Is Spin Chance?

• If your credit falls below the current bet but is still above zero, Spin Chance is activated.
• You may decide to wager your remaining credit for a chance at a spin at your selected bet, or choose to exit with the balance.
• A green segment awards a spin; a red one results in losing your remaining credit.

How Do I Use the Main Game Controls?

• Spin: Initiates a game round at the chosen stake.
• Stake: Opens the menu to adjust your bet level.
• Fortune Bet: Switches Fortune Bet mode on or off.
• Settings: Accesses additional game settings and information.
• Game History: Displays your recent play log.
• Sound: Turns game audio on or off.

Are There Keyboard Shortcuts?

• You can use the SPACE BAR as a shortcut to operate the main action button in-game.

What General Information Do I Need to Know?

• Your game session will recover to its last state if interrupted.
• Minimum bet is £0.10 per game. Maximum bet is £5.00 per game.
• Payout information, including RTP, is displayed within the in-game menu.
• The single-game maximum potential win is capped at £50,000 (excluding jackpots).
• Game results are pre-determined and unaffected by player choices, except where stated.
• If a technical issue occurs, all plays and wins are voided.

🎰 You May Also Like: Amazon Kingdom | Almighty Lollipop SuperSymbols | Vikings fight for Honour

*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.