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Big Bass Bonanza Megaways — Slotester Lab test cover
10,000 SPINS DEMO SERVER REVIEW PENDING

Pragmatic Play · 2021 · tested 2026-09-11

Big Bass Bonanza Megaways

Fish survive winning tumbles in Big Bass Bonanza Megaways free spins; our demo review follows 88 natural bonuses to see what the fishermen collected and how far the retriggers went.

Lab verdict

The fish can remain while the board tumbles around them. The interesting part is whether a fisherman reaches that screen, then whether enough fishermen arrive to extend the feature.

Base gameweak
Bonus valuestrong
Variancehigh

measured over 10,000 spins

Is Big Bass Bonanza Megaways worth playing?

quick answer

Big Bass Bonanza Megaways returned 90.22% at a USD 2 stake, with 88 natural features across the ordinary-spin sample. Twenty-three features earned extra spins through fishermen; the best finished at 416.9x. This demo has no feature purchase, so its bonus results come entirely from ordinary play.

Test card

10,000 spins · USD 2.00 bet · every request logged
Spins10,000
BetUSD 2.00
RTP declared96.72%
RTP measured90.22% (95% CI 71.8–108.6)
Hit frequency15% · every 6.47
Dead streak max / avg54 / 6.4
Median hit0.90x
Max win (base game)84.5x · spin 2362
Free spins, natural88 · every 113.6 spins · mean 69.5x
Balance start → end100,000 → 98,044
Balance in bets over the base series
Win distribution, x bet
Spin log (txt) CSV 10,000 rows · round, bet, win, x, balance

Play Big Bass Bonanza Megaways demo

same math as real play · demo balance
Big Bass Bonanza Megaways: base game, start screen
Free demo · no registration · plays on the provider's official server · 18+ Responsible gambling

Free spins on video

natural trigger · 88 in 10,000 spins
REC · NATURAL TRIGGER · ROUND 170

Recorded on media spin 170 in a separate demo session at USD 2. The result screen shows USD 116.80: USD 115.20 came from ten free spins and USD 1.60 from the triggering ordinary spin. Three fishermen arrived, so this feature ended before earning an extension. The statistical bonus results below exclude the triggering ordinary-game payments.

Across the whole run the 88 natural bonuses split into 16 under 20x, 29 between 20x and 50x, 26 between 50x and 100x and 17 at 100x or more, and together they made up 68% of everything the game returned. The wait between two triggers ran from 2 to 611 spins. 27 of them ran longer than the basic 10 spins.

  • triggers 88 1 per 114 spins
  • every 114 spins gaps 2 to 611
  • mean 69.5x median 48.1x
  • best 416.9x round 5251
  • spins per bonus 13.8 10 base, up to 35
Trigger mapevery natural bonus of the run · height = result, log scale · amber = top 4
Best bonuses
  1. 01round 525135 spins416.9x
  2. 02round 11020 spins244.3x
  3. 03round 782330 spins220.2x
  4. 04round 592030 spins219.0x

Risk profile

how much bankroll this run needed
1,463xmax drawdown, in bets (by spin 8651)
-1,152xlowest point vs start
54longest dead streak, spins
Bankroll survival in this run
50 betsbust at spin 65
100 betsbust at spin 3049
200 betsbust at spin 3185

One run, one bet size. A different session can bust earlier or never; treat this as a measured example, not a rule.

How it plays

7 rules screens from the game

Look at the short horizontal reel above the middle four columns: it spins independently, from right to left. Its symbols join the six main reels when combinations are counted. The outer reels can hold six symbols; each middle reel can hold five below that extra top position, giving a maximum of 46,656 ways.

Matching symbols connect through neighbouring reels from the left edge. A bobber can pay with two; the other ordinary symbols need at least three. A winning combination clears, the remaining symbols drop and replacements enter from above, keeping the original symbol sizes for that tumble sequence. The fishing-net wild belongs only to the upper row over reels two through five and cannot replace a scatter or fisherman.

The fish has two jobs. It can complete an ordinary ways combination, and it carries a separate money value from 2x up to 4,000x the stake. Those money values become collectible during free spins. Fish clear normally in the base game, but survive winning tumbles during the feature, falling with the remaining symbols instead of disappearing.

Three bass scatters start ten spins; four, five and six start fifteen, twenty and twenty-five respectively. A fisherman appears only in this feature and collects every visible fish value, with several fishermen each collecting the same screen. Every fourth fisherman earns another ten spins; the first, second and third extensions use 2x, 3x and 10x multipliers on both fish collections and ordinary wins. The current batch must finish before an extension begins with its new multiplier. Only three extensions are available.

Dynamite and a bazooka can help a screen containing one or two fishermen but no fish when a free spin ends. Dynamite introduces fish at random positions; the bazooka redraws every position except those occupied by fishermen. These interventions are random. Our English help lists medium volatility, a 96.72% theoretical return and USD 0.20–240 stakes; the game ends a round at 4,000x even if free spins remain.

Mechanics7 from the rules screens
  • Megaways
  • Cascading reels
  • Wild symbol
  • Scatter symbol
  • Free spins
  • Retrigger
  • Multiplier
Paytable
x total bet · bar = top payout on a log scale
symbol 23456+
Bobber 2x 5x 10x 25x 50x
Fishing rod 1x 2x 2.5x 7.5x
Dragonfly 0.25x 1x 1.5x 2x
Tackle box 0.25x 0.5x 0.75x 2x
Fish 0.2x 0.4x 0.6x 1.75x
A 0.2x 0.4x 0.6x 1.75x
K 0.2x 0.25x 0.6x 1x
Q 0.15x 0.25x 0.5x 1x
J 0.15x 0.25x 0.5x 0.9x
10 0.1x 0.2x 0.4x 0.8x

Bet range 0.20 – 240 per spin · payouts read from the game's paytable at bet 2.00

Verdict

who it suits, who should skip it

The strongest feature began with fifteen spins and ended with thirty-five. On round 5251, fish collections supplied USD 628 of its USD 833.80 return; ways combinations contributed the other USD 205.80. That second part matters here: the later 2x and 3x stages increased ordinary combinations as well as the amounts collected from fish.

Ten fishermen appeared in that feature, enough for two extensions. The first fifteen spins returned USD 164, the next ten took the total to USD 576.40, and the final ten brought it to USD 833.80. None of the 88 natural features reached the last 10x stage, so the review has no recorded example of that stage to show.

The ordinary reels left longer waits than the medium-volatility label might suggest. There were 8,455 zero-return rounds, and fifty-four consecutive blanks between rounds 5866 and 5919. A natural feature arrived immediately afterwards, returning USD 438 on round 5920; that sequence describes one event, not a reason to expect a bonus after a dry spell.

Across the full sample, USD 20,000 in stakes returned USD 18,043.70. The 95% interval around the measured RTP spans 71.83% to 108.61%, which includes the configured 96.72%. The accompanying bonus footage comes from a separate demo session; it is an illustration of the collection mechanics, while the downloadable log supplies the statistical results.

Measured upsides
  • Fish remain available during winning feature tumbles
  • Retrigger multipliers increase both types of feature payout
  • The counter shows progress towards each group of four fishermen
Measured downsides
  • There is no direct feature entry in the tested demo
  • Most ordinary rounds returned zero in this sample
  • Twenty-three retriggered features still produced no example of the final 10x stage
What the AI noticed during the run
  • Round 564 collected four fish worth USD 40 in total with two fishermen on the same screen. Their combined collection was USD 80; a separate ways win added USD 0.80.
  • The longest gap between natural features was 610 ordinary spins, after round 2902 and before round 3513.
  • Outside free-spin triggers, round 2362 led the sample with USD 169, equivalent to 84.5 stakes.
  • At round 1376, a three-fish screen totalled USD 100 before the 2x stage multiplier. One fisherman collected USD 200, the largest individual fish collection logged.

Method & data

open data · closed rig

10000 base-game spins at a fixed USD 2.0 bet on the official Pragmatic Play demo server (jurisdiction 99, RTP profile 96.72%); every request and response logged; test run 2026-09-11.

The test rig recorded every round on the official demo server. Screenshots and video were captured in a separate browser session and are not part of the statistical samples. This release has completed automated data, content and page checks; human editorial review is pending. How we test →

Test history
2026-09-1110,000 spins · RTP 90.2%

FAQ

6 questions · answered from the log
Why are some fish still there after a winning tumble?
Lab answer

During free spins, fish survive the clearing step and drop with the remaining symbols. Their money labels can then be collected by a fisherman. In ordinary play, fish in a winning combination clear normally.

Does the top horizontal reel count towards Megaways?
Lab answer

Yes. It adds a position above each of the four middle reels. With the main reels at their largest sizes, the English rules give 46,656 ways; the visible count changes with the reel sizes.

Will four fishermen raise the multiplier straight away?
Lab answer

They earn an extra batch of ten spins. The current batch finishes first, then the added spins use the new multiplier. The three extensions step through 2x, 3x and 10x.

Can two fishermen collect the same fish?
Lab answer

Each fisherman collects all visible fish values. Round 564 supplied a clear example: two fishermen collected a screen worth USD 40 twice, returning USD 80 before the separate ways payment.

Where is the bonus purchase on this version?
Lab answer

The tested demo does not offer one. Its purchase options are empty and the interface has no buy control; all 88 statistical features were natural scatter triggers.

Which multiplier stage did the strongest feature reach?
Lab answer

It reached the 3x stage. Round 5251 started with fifteen spins and earned two ten-spin extensions, returning USD 833.80 from a USD 2 stake. No feature in this sample reached the final 10x stage.

Field notes

0 notes
Slotester Labmeasured run · every request logged measured
  • spins10,000
  • bet2.00
  • result-978x
  • RTP measured90.2%
  • bonuses88
  • max win84.5x

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