Big Bass Mission Fishin’
Game Stats
RTP & Maths
- RTP by Mode
- Ante Bet 96.50%, Buy Feature 96.50%
- Max Win Rule
- 5,000x bet; the round ends when reached
Free Spins & Bonus
- Free Spins
- 3/4/5 scatters = 10/15/20 free spins, or Stack the Cash instead · Retrigger: every 4th Wild: +10 spins, 2x / 3x / 10x (levels 2-4); no retrigger after level 4
- Bonus Buy
- Buy Feature (Free Spins or Stack the Cash) 100x
- Ante Bet
- 15x: more scatters, buy disabled stake · Disables the buy
Symbols & Pays
- Money Symbols
- 2x, 5x, 10x, 15x, 20x, 25x, 50x, 100x, 200x, 500x or 5000x base bet; Stack the Cash coins 1x–10x or 25x
- Line Pays
- Top symbol 200x · Lowest 0.2x
Big Bass Mission Fishin’ Demo by Pragmatic Play
Three scatters in Big Bass Mission Fishin’ don’t start a bonus. They start a choice. You pick free spins with a set of modifiers, or Stack the Cash, a respin game that drops the fish and the fisherman and plays with coins and robo-crabs instead. Reel Kingdom dressed the slot as a night dive from a speedboat, and the two rounds behave so differently that the pick is the main decision the game hands you, and the reason to try it in free play.
Bonus Rounds in Free Play
The Mission Choice
When 3, 4 or 5 scatters land, the screen asks which round you want. On the free spins side, those counts give 10, 15 or 20 spins. Two scatters can still be rescued at random, either by a respin that drops the scatters one row while the other reels spin again, or by a hook that hauls a reel up to show another one.
Files Before the Free Spins
Choose free spins and you open files until a boot appears and ends the pick. Each file can reveal More Fish, More Fisherman, More Dynamites, Hooks and Bazookas, Start From Level 2, or +2 Spins, which adds two spins at the start and two more on every retrigger. During the round, the diver fisherman is the Wild, and he collects the value of every fish on screen when he lands. Every 4th one retriggers the free spins with 10 more and lifts the collection multiplier a level, first to 2x, then 3x, then 10x, and the fourth level is the last.
Stack the Cash and the Robo-Crabs

The other option wipes the normal symbols from the reels, leaving only Fish Coins and blanks. A robo-crab sits under each reel, you start with 4 respins, and every new coin sticks and resets it to 4. Fill a reel with coins and its values drop into the crab below while the reel clears for more. Whenever a new coin lands, a bomb falls on a random reel and doubles the coins on it and the crab beneath. Once no respins are left, the game adds up the crabs and pays the total.
Ante and the Two-Way Buy
A 15x ante (normal play is 10x) puts extra scatters in play, but the buy is switched off while it’s on. Without it, 100x buys a bonus, and you still choose which of the two rounds you get.
How to Play
Coins Against Fish

The two rounds pay from different pools, and that’s what to weigh when the choice screen appears. Free spins collect fish worth 2x to 5,000x the bet, with a collection multiplier on later levels. Stack the Cash coins are worth 1x to 10x, or 25x, and grow through the bombs and the crab collections. Both are part of the same Big Bass family that began with Big Bass Bonanza, but only the free spins use the fisherman.
Slot RTP
Mission Fishin’ returns 96.50% whichever way you play, ante, either bought round or neither. The rules label the game Medium volatility. A bonus round stops at 5,000x the bet.
Game Paytable
Ten lines pay across the 5×3 grid. Two speedboats already pay 0.5x, a pay no other symbol has for a pair, and A and K pay double what Q, J and 10 pay for five.
| Symbol | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
| Speedboat | 0.5x | 5x | 20x | 200x |
| Dragonfly | – | 3x | 15x | 100x |
| Grapple Gun | – | 2x | 10x | 50x |
| Tackle Box | – | 2x | 10x | 50x |
| Fish (money) | – | 1x | 5x | 20x |
| A | – | 0.2x | 2.5x | 10x |
| K | – | 0.2x | 2.5x | 10x |
| Q | – | 0.2x | 1x | 5x |
| J | – | 0.2x | 1x | 5x |
| 10 | – | 0.2x | 1x | 5x |
Ultimate Slots Verdict
Big Bass Mission Fishin' gives the series a second bonus and lets you pick it every time, either from the trigger or the 100x buy.
The free spins are the familiar collect with a strong file pick, and Stack the Cash is a sticky-coin respin game with robo-crabs and doubling bombs. The main game stays plain.
Hits What we like
- You choose free spins or Stack the Cash on every trigger and every buy
- The file pick can start free spins at level 2 or add 2 spins to every retrigger
- Bombs double a reel and the robo-crab under it in Stack the Cash
- Fish in free spins range up to 5,000x the bet
Misses What could be better
- Line pays in the main game are modest
- Two-scatter rescues are random, not guaranteed
- The ante disables the buy
Detailed Review
Big Bass Mission Fishin’ Demo Review
Mission Fishin’ earns its place in the series with the choice, and it’s a real one. Most of the game is the familiar fisherman collect, ten lines and a speedboat as the top symbol. What changes the experience is that every trigger, and every buy, asks you which bonus you want.
Free spins here are the classic Big Bass round with a better setup screen. The file pick can stack the odds before the round begins, and Start From Level 2 is the one to hope for, since it begins the round at a 2x collection multiplier. The ladder still stops at 10x after the fourth level, so the round has a known shape, and the fish range up to 5,000x is where its top end comes from.
Stack the Cash is the surprise. Coins are small, 1x to 25x, but they stick, reset the respins and feed crabs that get doubled by bombs, so the round builds on itself instead of waiting for a fisherman. It plays like a hold-and-win game, and it means a player who dislikes waiting for Wild and fish to land together has another route.
The weak spot is the main game. Line pays are modest, the fish only matter in free spins, and the scatter helpers are random rather than reliable, so our review score rests on the two bonus rounds. In free play, it’s worth trying both before deciding which you’d pick.
Big Bass Series at a Glance
All Big Bass Series ›| Game | RTP | Max win | Volatility |
|---|---|---|---|
| Big Bass Mission Fishin’ | 96.5% | 5,000x | Medium |
| Big Bass Splash | 96.71% | 5,000x | Very High |
| Big Bass Bonanza | 96.71% | 2,100x | High |
| Big Bass Bonanza 1000 | 96.51% | 20,000x | High |
| Big Bass Splash 1000 | 96.52% | 25,000x | High |
| Big Bass Amazon Xtreme | 96.07% | 10,000x | High |
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