Rainbow Reels
Want cell-by-cell symbol removal?Rainbow Reels uncovers seven layers inside winning cells, while Gold Oasis removes one losing symbol identity from the entire bonus through repeated duels.
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Free demo & independent review
Gold Oasis uses a 5×3 grid and 243 ways, but matching symbols can start from either the left or right as long as they span at least three reels. During base play, a random duel chooses two symbols and converts up to ten losing icons into the winner. Three keyhole Scatters award Free Spins, where every symbol pays its five-of-a-kind amount. Collecting two Scatters starts another duel, permanently replaces the losing symbol for the rest of the round and awards extra spins.

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Know this game
Gold Oasis uses a 5×3 grid and 243 ways, but matching symbols can start from either the left or right as long as they span at least three reels. During base play, a random duel chooses two symbols and converts up to ten losing icons into the winner. Three keyhole Scatters award Free Spins, where every symbol pays its five-of-a-kind amount. Collecting two Scatters starts another duel, permanently replaces the losing symbol for the rest of the round and awards extra spins.
Inside the game
Wins travel from either edge, while duels convert losing symbols and progressively simplify the feature's remaining pay set.
Matching symbols need to span at least three reels but may connect from the left or the right edge of the 5×3 grid.
Two symbols are selected randomly and instances of the losing one can be converted into the winner across as many as ten positions.
During Free Spins, any valid combination is evaluated at that symbol's five-of-a-kind value rather than a shorter matching amount.
Every pair collected in the feature permanently changes the losing symbol into the winner and also awards extra Free Spins.
Which symbol wins and how much the remaining bonus set improves
Combinations can begin at the left or right edge and need matching symbols across at least three reels. Do not apply a left-only reading habit.
The useful result is not only the winning symbol. Note which losing icon is removed, because that conversion changes the distribution of future outcomes.
Every two collected Scatters start another permanent transformation and add spins. Later duels operate on the already simplified symbol set.
03 / The details
Catalog figures and in-game observations.
Settings may differ by version and casino.
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The reviewed provider configuration lists 96.06% RTP, Medium volatility, a 5×3 layout with 243 ways and a 7,260x maximum. Individual symbol duels and operator feature settings may differ between sessions and casinos.
04 / The SlotsCollector take
Gold Oasis uses a 5×3 grid and 243 ways, but matching symbols can start from either the left or right as long as they span at least three reels. During base play, a random duel chooses two symbols and converts up to ten losing icons into the winner. Three keyhole Scatters award Free Spins, where every symbol pays its five-of-a-kind amount. Collecting two Scatters starts another duel, permanently replaces the losing symbol for the rest of the round and awards extra spins.
Gold Oasis changes two familiar assumptions. First, winning combinations can begin from the left or right and need matching symbols across at least three reels. Second, a random base-game duel can choose two icons and replace up to ten instances of the loser with the winner. That conversion may create or improve a result immediately. Three keyhole Scatters award Free Spins. During the feature, all symbols pay their five-of-a-kind value whenever they form a win, removing the normal difference between three-, four- and five-reel amounts. Every two collected Scatters trigger another duel, permanently convert the losing symbol into the winner for all remaining spins and add extra games. Repeated duels therefore simplify the pay set while extending the time available to use it. The reviewed provider configuration currently lists 96.06% RTP, Medium volatility, 243 ways and a 7,260x maximum. Medium describes the listed game profile, not whether a duel will promote a useful symbol in an individual round. In the demo, read wins from both edges and record each duel as a pair: the promoted symbol and the symbol removed. A dramatic conversion of ten positions is useful in base play, but during Free Spins the lasting change to the symbol population may matter more than the immediate screen. Duels can also promote a less desirable icon, so every transformation is not automatically an upgrade in the player's preferred sense. The mechanism is strongest when several bonus duels consolidate symbols and the added spins reuse the simplified set. It suits players who enjoy persistent symbol transformation and a clear cause-and-effect event. Those who prefer ordinary left-to-right paylines or a stable symbol distribution may need several demo rounds before the two-direction and duel rules feel natural.
05 / Inside the game
Tutorial, reels and game rules.
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06 / Find your next game
Compare the feature, not just the theme.
Rainbow Reels uncovers seven layers inside winning cells, while Gold Oasis removes one losing symbol identity from the entire bonus through repeated duels.
Explore gameThe Alter Ego changes groups through mystery effects and persistent reel heights, whereas Gold Oasis uses explicit two-symbol contests to simplify its pay set.
Explore gameYes. Matching symbols can begin at either reel edge as long as they continue across at least three reels.
It chooses two symbols and replaces instances of the losing icon with the winner; bonus duels make that change permanent.
Every two Scatters collected during Free Spins start another duel and also award additional games.
Sources & data verification
Rules, observations and catalog values have different scopes. Review the source before relying on a figure.
Primary provider evidence for the rules, feature behaviour and reviewed configuration used in this independent player guide.
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