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Big Mouth Fishin' Slot Game

Big Mouth Fishin' Cover Image

Big Mouth Fishin' Introduction

Any budding anglers out there may appreciate the Big Mouth Fishin' slot release by Oros Gaming. This slot title features lots of interesting fishing-based imagery on and around the play grid, with brilliant mechanics and bonus features, including 4 potential jackpot prizes! Of all the brilliant fishing-based slots at Lottomart, we think Big Mouth Fishin' stands out, as you can find out here.

Big Mouth Fishin' Game Details

RTP (Return to Player):
Min / Max Bet:
£0.10 / £22.50
Hit Rate:
1 in 3.3
Auto Play:
Diamonds per £:
Min. 500
Features Paylines, Win Boost, Fixed Jackpots, Wilds, Stacked Wilds, Scatter Symbols, Cash Symbols, Scatter Symbols, Respins, Symbol Locks, Free Spins Retrigger, Bonus Chain, Free Spins, Pay as Scatters, Jumbo Symbols

Big Mouth Fishin' Slot Game Background

Oros Gaming is a new game developer, joining the market back in 2021, that is gradually developing a reputation for its high-quality slot releases. This developer prioritises quality over quantity, with a small number of outstanding slot tiles coming from their offices in Reno, Nevada. Some of the most popular slots from Oros Gaming include Joker Bonanza Cash Spree and the Magnificent Power Zeus slot.

Big Mouth Fishin' Game Design

The 5-reel, 3-row play grid in Big Mouth Fishin' is quite small on screen, with Oros Gaming putting plenty of effort into the included design features. The backdrop shows the ebbing current of the water below, from which players can view the natural world beneath sea level, a theme often ignored in fishing-themed slots. The Mini, Minor, Major and Mega jackpot prizes are on the left-hand side.

Big Mouth Fishin' Mobile

Thankfully, Oros Gaming has included the HTML5 framework in Big Mouth Fishin' that has become a popular addition in many online slots; this allows players to experience the same gameplay with devices of varying screen sizes, from smartphones to desktop PCs, without losing any features or quality in play.

Big Mouth Fishin' Quality

All of the symbols in play, including the card ones live casino games, are given a nautical design in keeping with the theme.

Lower Value Symbols

  • J - Valued at 0.3x, 0.5x or 2x the bet for landing 3, 4 or 5 across a payline.
  • Q - Valued at 0.3x, 0.5x or 2.5x the bet for landing 3, 4 or 5 across a payline.
  • K - Valued at 0.4x, 0.7x or 3x the bet for landing 3, 4 or 5 across a payline.
  • A - Valued at 0.5x, 0.8x or 4x the bet for landing 3, 4 or 5 across a payline.

Higher Value Symbols

  • Reel - Valued at 0.8x, 1.5x or 7.5x the bet for landing 3, 4 or 5 on a payline.
  • Dragonfly - Valued at 1x, 2x or 10.5x the bet for landing 3, 4 or 5 on a payline.
  • Hook - Valued at 1.2x, 2.5x or 15x the bet for landing 3, 4 or 5 on a payline.
  • Cans - Valued at 2x, 5x or 25x the bet for landing 3, 4 or 5 on a payline.
  • Boat Wild - Valued at 2.5x, 20x or 500x the bet for landing 3, 4 or 5 on a payline.

Big Mouth Fishin' Bonus Features

Wild Symbol

Along with being one of the higher valued symbols, the boat symbol in the Big Mouth Fishin' slot also plays as the Wild here; this can substitute for any of the other base game symbols in play if it lands on the play grid. There are also cash-value fish symbols that can land during play; these could trigger the Link&Win bonus in play!


Landing 6 cash value fish symbols in a single spin triggers this bonus round. These symbols can display values up to 20x the bet stake or the Mini, Minor, Major or Mega jackpots.

All triggered fish symbols remain sticky, and the player gets 3 respins of the other symbols in play in the hope of landing further fish prizes. Each additional fish symbol that may land could reset the respins to 3 and remain sticky for the rest of the feature. All grid positions should be full to trigger any of the jackpots. Their jackpot values are as follows:

  • Mini Jackpot - 50x the stake.
  • Minor Jackpot - 150x the stake.
  • Major Jackpot - 750x the stake.
  • Mega Jackpot - 5,000x the stake.
Big Mouth Fishin' Free Spins

Landing a Scatter symbol on the 2nd, 3rd and 4th reels in a single spin may trigger the Free Spins bonus in this Big Mouth Fishin' slot; this could result in 10 free spins, during which the middle 3 reels merge into a single giant symbol!

Big Mouth Fishin' Slot Summary

The design features, gameplay mechanics and bonus features included in the Big Mouth Fishin' slot provide an alternative to other fishing-based slots. If you're looking for a different slot theme, other popular games include the Cash Pong slot and the Dead or Alive slot.

Other Slots by Oros Gaming

If the features or thematics in Big Mouth Fishin' interest you, there are plenty more slots from the same developer at Lottomart.

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Safer Gaming

This is a real money gambling site. Please keep your play safe and fun at all times and only bet what you can afford.

Play Big Mouth Fishin' at Lottomart Games

Oros Gaming takes several creative liberties regarding the fishing genre in this Big Mouth Fishin' slot! If you are a new Lottomart UK customer, you can access our generous welcome bonus, which will grant you some extra gaming funds. New customers can get a 100% deposit match bonus up to £100! 18+, terms apply. If you join and deposit £100, we will give you another £100 in bonus funds to play around with!

£10 min deposit. £100 max match. 50x wagering. Game eligibility & contributions vary. 10p to £5 bet range. £500 max redemption. New players only. Limited time offer. Valid 7 days. Terms apply.

View full 100% Games Welcome Match Deposit Offer Terms and Conditions →


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