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Every online slot provider has a Hold & Win game in their catalog these days, which means developers have to get creative to stand out. With Booming Buffalo Hold and Win: Extreme 2, Booming Games decided the answer was sheer volume.
A few spins in, it became immediately clear what kind of game this is: it strips the base game down to the absolute bare minimum and puts all the financial weight into the bonus coins. If you’re a player who likes steady line hits, look away now. But if you’re a high-volatility chaser who loves grid-expanding features, here is what you need to know.
The Base Game: Bare Bones
The base game here exists to get you to the bonus. Played on a standard 5×3 layout, the paytable is flat by design. Five top-tier buffalo symbols will only return 4x your bet, and the minor symbols pay fractions.
In my session wilds landed often on reels two through five and never once on the first reel, so all I ever saw them do was extend a combo, not start one. The best base game hit I managed in a 100-spin session used eight wilds to connect a few minor lines for a 7.6x return. The game can also run quite cold; I had a stretch of nearly ten dead spins in a row. You aren’t playing this for line hits.
The Tease of the “Dead” Coins
Coins land constantly in the base game, carrying values from 1x up to a 100x Major. However, you need six to trigger the main feature. If you land five or fewer, they are completely dead and pay nothing. I watched a board land 23x in coin value, only to vanish into thin air because I missed the sixth coin.
The Saving Grace: The exception to this rule is the random Buffalo Bonus. Any base spin that lands at least one coin has a chance to trigger a prize wheel. It spins once, awarding direct entry into the respin bonus, a fixed jackpot, or a multiplier (1x to 5x) applied to the coins currently on the screen. It’s a great feature that rescues “dead” boards.
The Main Event: 4-Grid Hold & Win
This is the reason you play the game. Landing six coins shifts the slot from a single board to four chained 5×3 grids. The first grid is open, and you need a running total of coins to unlock the rest: 9 for the second, 18 for the third, and 27 for the fourth.
Unlike some slots that make you jump through hoops to unlock grids, this is purely a numbers game. Every coin that lands resets your spins to three and counts toward unlocking the next grid.
To keep things volatile, four “Power Coins” can land during the feature:
- Multiply: Doubles every value on its specific grid.
- Collect: Copies the total of its grid onto itself, and the original coins keep their values.
- Unlock: Immediately opens the next chained grid (a lifesaver).
- Extra Life: Adds another respin cycle when your counter hits zero.
The bonus doesn’t pay you as you go; it banks everything until you run out of spins. If you manage the dream scenario and fill all 60 positions across the four grids, you are awarded the 10,000x Grand Jackpot on top of your collected coins.
What Boost+ Doesn’t Change
The game offers a “Boost+” side bet that increases your stake by 25% in exchange for a higher chance of triggering the features.
Use this with caution. The game’s rules don’t specify exactly how much your chances increase, and the average RTP stays static at 96.1%. More importantly, wins are calculated on your base bet. If you are betting $1.00 plus the $0.25 Ante, a 4.8x line win will still only pay you $4.80, not $6.00.
