Ultra Burst Slot Review
A curtain of blue light hangs behind the reels, thin glowing lines dividing the columns like a backlit panel in a dark room. That’s the world of Ultra Burst, a Red Rake Gaming slot that bets everything on a single symbol: strip the fruit machine down to five paylines, and make one wild-assisted win change the entire structure of the game.
It runs at 95.4% RTP, with stakes from 0.1 to 75 per spin and a feature multiplier that caps at x5. The neon trim and classic bells, cherries and sevens put it in familiar company alongside 777 Heist 2 and Million 777 Hot from the same studio, though this one keeps its ambitions narrower. No maximum win figure is published for it, so the x5 feature cap is the ceiling the mechanics point at.
Five Paylines and a Classic Reel
The base game is deliberately small. Five fixed bet lines run left to right across the 5×3 grid, and only the highest win on each line pays. There’s no scatter, no bonus symbol to collect, and nothing to track between spins.
What you get instead is a clean, fast classic-format slot. The reels carry diamonds, BARs, bells, sevens and fruit, and wins land as straightforward left-to-right combinations. Nothing runs the other way, and technical errors void all wins and spins. That’s the full rule set.
The Ultra Burst Wild appears on reels 2, 3 and 4 only, and substitutes for every other symbol. Land it as part of a winning combination and the game changes shape entirely. That single symbol is the bridge between the quiet base game and everything the slot is actually about.
Wins pay as multiples of the total bet rather than the line bet, so read the paytable with that in mind. The figures below are what each symbol pays for three, four and five of a kind.
- Diamond – 10x for three, 20x for four, 40x for five
- BAR – 6x for four, 24x for five
- Bell – 4x for three, 8x for four, 16x for five
- 7 – 4x for three, 8x for four, 16x for five
- Cherry – 2x for three, 3x for four, 4x for five
- Lemon – 2x for three, 3x for four, 4x for five
- Grapes – 1x for three, 2x for four, 3x for five
- Watermelon – 1x for four, 2x for five
The spread is a classic one. The diamond carries the top prize at 40x the total bet for five of a kind, while the fruit symbols fill out the bottom of the ladder with pays that barely cover the spin.
The bell and the seven pay identically, as do the cherry and the lemon, which keeps the effective symbol count low. Two symbols sit partway up the ladder: the BAR starts paying at four of a kind and the watermelon at four too, so not every symbol can win from three.
That matters more than it would on a busier slot. With only five lines in play, the difference between a symbol that pays from three of a kind and one that doesn’t is the difference between a spin that returns something and a spin that returns nothing at all.
The Ultra Burst Feature
This is the game’s one idea, and it’s a good one. When a win includes an Ultra Burst Wild, the feature launches and the slot switches from five paylines to 243 ways to win. The grid stays at 5×3; only the way wins are counted changes.
The switch is the whole point. Five bet lines reward a narrow band of positions; 243 ways rewards coverage across the entire grid. On a five-reel, three-row layout, three positions per reel across five reels is exactly 243 combinations, which is where the number comes from.
A symbol stack in the middle reels that would pay nothing in the base game can suddenly be the start of a chain. Here’s the sequence once the feature fires:
- A win lands that includes an Ultra Burst Wild on reels 2, 3 or 4
- The game converts from five paylines to 243 ways to win
- All symbols from winning combinations disappear
- A respin follows at a greater multiplier
- Each further win raises the multiplier again, up to x5
- The chain ends when a respin produces no win or the x5 cap is reached
There’s no retrigger to wait for and no separate bonus screen. The respins run inside the base reels, with winning symbols clearing away and new symbols dropping into the gaps.
The multiplier climbs only while the wins keep coming, so the cap and the chain length are tied together. Each win on the way up was evaluated across 243 ways rather than five lines.
The x5 multiplier cap is the game’s ceiling, and it’s a modest one. With the top paytable symbol at 40x for five of a kind, even a perfect run works with fairly limited raw material.
What gives a chain room is the 243-ways conversion, which lets a single respin accumulate multiple simultaneous wins rather than one line paying once. The cap applies to the multiplier, not to the number of ways or the length of the chain, so a long run stacks both.
The conversion also changes which symbols matter. In the base game, the wild only has to complete one of five lines. In the feature, a wild sitting on reel three can contribute to wins across the whole grid at once, which is why the wild-assisted trigger is where the game concentrates its payout potential.
Our Honest Verdict
Overall Rating: 7/10
Playing Ultra Burst means long stretches of five-line fruit machine punctuated by the occasional moment where the whole grid switches on. The reason to sit through the quiet parts is that switch: one wild-assisted win and the reels suddenly pay 243 different ways, which is a bigger jump than most bonus rounds manage.
Its strength is that the feature isn’t gated behind scatters or a separate screen; the escalation lives inside the base reels and can start on any spin. Its weakness is the paytable underneath it, which tops out at 40x and leaves even a full x5 chain working with thin material.
This one suits players who like lean, fast classic slots and don’t need a four-figure ceiling to enjoy a good chain; anyone hunting huge max wins will find the neon glow dims well short of that. For what it sets out to do, though, it’s a small machine that flashes brightly when it matters.
Ultra Burst FAQs
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What is the RTP of Ultra Burst?
Ultra Burst runs at 95.4% RTP. -
How many paylines does Ultra Burst have?
Ultra Burst has five fixed bet lines in the base game, paying left to right, with only the highest win on each line paid. -
What is the grid size of Ultra Burst?
Ultra Burst is played on a 5×3 grid with three rows and five reels. -
What is the minimum and maximum bet on Ultra Burst?
Stakes run from 0.1 to 75 per spin. -
Who makes Ultra Burst?
Ultra Burst is made by Red Rake Gaming. -
When is Ultra Burst released?
Ultra Burst’s release date is 26 May 2022. -
How do you trigger the Ultra Burst feature?
The feature triggers whenever a winning combination includes an Ultra Burst Wild symbol, which can appear on reels 2, 3 and 4 only. -
What does the Ultra Burst feature do?
When triggered, the game changes from five paylines to 243 ways to win. Winning symbols disappear and the respins continue with an increasing multiplier, up to a maximum of x5, until no win is achieved or the cap is reached.


