Bonanza Billion Merge Up Guide: Rules, Merge Up, x100 Multipliers and Bonus Buy
By the CasinoDemo editorial team · Updated 2026-11-09 · How we review
Bonanza Billion Merge Up+ is BGaming's second pass at its pay anywhere fruit slot. The 6x5 grid, the rainbow clover scatter and the gift box multipliers up to x100 are back. The new part is Merge Up: winning symbols do not just vanish, they combine into a fresh symbol before the grid refills.
We played the demo, read the in-game paytable and rules, bought the free spins and ran the Chance x2 option for a dozen spins. The demo uses play money called FUN, so every result below is in FUN and also as a multiple of the 2.00 FUN bet we used.
Play Bonanza Billion Merge Up™+ demo for free
Bonanza Billion Merge Up™+ at a glance
- Provider
- BGaming
- RTP
- 97.04%
- Volatility
- High
- Demo
- Free, no sign-up
How Bonanza Billion Merge Up works
The grid has 6 reels and 5 rows, with no paylines. Symbols pay anywhere on the screen once 8 or more of the same type land, and the total count of that symbol at the end of the spin sets the win. Pay tiers are 8-9, 10-11 and 12+ symbols.
Merge Up is the twist. Winning symbols pay, then merge into one new symbol. The rules say the new symbol is one of the types already on the reels, and the more of a type there is on the grid, the better its chance of being picked. After that, Refilling kicks in: the remaining symbols fall to the bottom, new ones drop in from above, and the process repeats until no new win forms. All wins from the spin are added to your balance once Refilling ends.
In practice this means a merged symbol can feed straight into the next win. On one of our Chance x2 spins a 0.80 FUN win and a 2.00 FUN win chained into a 10.40 FUN sequence, a little over 4x the 2.50 FUN stake.


Symbols and paytable
There are nine regular symbols: four gems and five fruits. At a 2.00 FUN bet the paytable shows these values for 12+, 10-11 and 8-9 symbols:
Green gem: 100.00, 50.00 and 20.00 FUN (50x, 25x and 10x the bet). Blue gem: 50.00, 20.00 and 5.00 FUN. Star: 30.00, 10.00 and 4.00 FUN. Red heart: 24.00, 4.00 and 3.00 FUN. Watermelon: 20.00, 3.00 and 2.00 FUN. Plum: 16.00, 2.40 and 1.60 FUN. Lemon: 10.00, 2.00 and 1.00 FUN. Orange: 8.00, 1.80 and 0.80 FUN. Cherry: 4.00, 1.50 and 0.50 FUN.
The rainbow clover is the scatter. It pays on any position: 4 scatters pay 6.00 FUN (3x), 5 pay 10.00 FUN (5x) and 6 pay 200.00 FUN (100x). If scatters and a regular win land on the same spin, you get both. The paytable and rules list no wild symbol in this game.

Free spins and gift box multipliers
Four or more scatters trigger the bonus: 4 give 10 free spins, 5 give 20 and 6 give 30. During free spins, 3 or more scatters add 5 more spins, and the rules say retriggers are limited only by the max win. Free spins play at the bet that triggered them.
The gift box multiplier only appears in free spins. Possible values are x2, x3, x5, x6, x8, x10, x12, x15, x20, x25, x40, x50, x60, x80 and x100. The multiplier applies to the total win of the spin, and when several land they are added together. Boxes that land on a spin with no win do nothing, which you will see a lot.


Bonus buy and Chance x2
There are two purchase options, and only one can be active at a time. Prices scale with the bet.
Buy Bonus starts free spins straight away and awards 10, 20 or 30 spins. At a 2.00 FUN bet it cost 200.00 FUN, which is 100x the bet. The RTP of this mode is listed as 97.2%.
Chance x2 is a toggle that raises the stake to give more chances of triggering free spins. With it on, our 2.00 FUN bet became 2.50 FUN, so it costs an extra 25%. Its RTP is 97.09%.
Our Buy Bonus round at 2.00 FUN gave 20 free spins. The big moment came on spin 10: a 4.00 FUN cherry win met several gift box multipliers, including x10 and x5 boxes, and the spin paid 120.00 FUN, 60x the bet, on its own. The full bonus ended at 131.80 FUN, 66x the bet, so it returned less than its 100x price. That is a single round, not an average.
We then switched on Chance x2 and played 12 spins at 2.50 FUN. Free spins did not trigger. The best spin paid 10.40 FUN and most paid nothing or small amounts. Again, one short session, not a guide to how often the bonus lands.



RTP, max win and bet range
The base game RTP is 97.04%. Buy Bonus runs at 97.2% and Chance x2 at 97.09%, so the purchase options sit slightly higher than playing normally. The max win is 15,000x the bet, and the rules put the odds of hitting it at 1 in 25,906,736. If a round reaches the cap, it is paid at the limit and closed.
In the demo the bet runs from 0.20 FUN to 21.25 FUN, with 2.00 FUN as the default. Casinos can set their own limits, and some licences switch off the bonus buy, autoplay or quick spin.
Our verdict
Merge Up gives this version a reason to exist next to the original Bonanza Billion. Watching a merged symbol set up the next win is more interesting than a plain tumble, and the gift box multipliers still carry the bonus. The 97.04% base RTP is strong for a buy feature slot. Our one bought bonus came in under its 100x price despite a 60x spin, which is a fair picture of how swingy the free spins are. Try the demo before staking real money.
How to play Bonanza Billion Merge Up™+ free in Canada
Press Play demo for free on the game page and the BGaming demo loads with virtual credits. There is nothing to download, no account to create and no deposit to make, and it works in your browser on desktop and mobile.
Demo credits have no cash value, so you can test bet sizes, trigger the features and learn the paytable without risking anything.
Playing Bonanza Billion Merge Up™+ for real money in Canada
Real-money online gambling in Canada is regulated province by province. Ontario runs a regulated market where licensed operators are overseen by iGaming Ontario and the AGCO; other provinces offer play through their own provincial sites, such as PlayNow (British Columbia, Manitoba and Saskatchewan), Loto-Québec, PlayAlberta and ALC in Atlantic Canada.
The legal age is 19 in most provinces and 18 in Alberta, Manitoba and Quebec. Only play at sites licensed where you live, set limits before you start, and treat gambling as entertainment, never as a way to make money.
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Bonanza Billion Merge Up™+ FAQ
- What is the RTP of Bonanza Billion Merge Up?
- The base game RTP is 97.04%. Buy Bonus with free spins has an RTP of 97.2% and Chance x2 has 97.09%.
- What is the max win?
- The max win is 15,000x the bet. The game's rules put the probability of hitting it at 1 in 25,906,736.
- How does Merge Up work?
- Winning symbols pay and merge into a new symbol of a type already on the reels. Types with more symbols on the grid have a better chance of being picked. Empty spaces then refill from above until no new win forms.
- How many free spins do you get?
- 4 scatters give 10 free spins, 5 give 20 and 6 give 30. Landing 3 or more scatters during the bonus adds 5 more spins.
- How much does the bonus buy cost?
- In our demo the Buy Bonus cost 200.00 FUN at a 2.00 FUN bet, which is 100x the bet. Chance x2 raises the bet by 25%, from 2.00 to 2.50 FUN.
- Is there a wild symbol?
- No. The paytable and rules list only the regular symbols, the clover scatter and the free spins gift box multiplier.
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