Double Rainbow (Hacksaw Gaming) Slot Review

Double Rainbow: Slot Overview

Double Rainbow is a vibrant video slot developed by Hacksaw Gaming, released on March 9, 2022. Inspired by the internet-famous double rainbow phenomenon and the charismatic “Double Rainbow Man” Paul Vasquez, the game embraces a whimsical rainbow theme set high among clouds, featuring colorful rainbows, a rainbow-haired unicorn, and candy symbols. It targets players seeking mobile-optimized, casual cluster-pay experiences in the developer’s Pocketz series, suitable for tablets, mobiles, and desktops. The gameplay revolves around a 7-reel, 6-row grid with cluster wins of 5+ adjacent matching symbols triggering cascades, medium volatility, and potential wins up to 5000x the stake.

Design and Graphics

The visuals immerse players in a harmonious, pastel-colored world atop fluffy white clouds encircled by double rainbows. A playful unicorn with rainbow hair graces the background, complementing the candy-themed symbols in seven rainbow hues: red, orange, yellow, green, blue, pink, and purple. The 7×6 reel grid sits on a bed of clouds, with animations highlighting cascades as winning clusters explode and new symbols tumble in. Wild symbols appear as glowing lightning bolts labeled “WILD,” while cloud symbols introduce dynamic multiplier effects. The aesthetic is deliberately simple and cute, optimized for portrait-mode mobile play in the Pocketz series, delivering smooth performance across devices without overwhelming complexity. Subtle sparkles and color bursts enhance wins, though the juvenile, glittery style may polarize opinions between fabulous and overly childish.

Double Rainbow slot – base game

Gameplay Mechanics

Double Rainbow employs a 7-reel, 6-row setup with no fixed paylines, instead using a cluster-pays system where wins form from 5+ adjacent matching symbols horizontally or vertically. All seven pay symbols—candies in rainbow colors—share identical values, paying from 0.1x the bet for 5-symbol clusters up to 50x for 15+ symbols. Winning clusters trigger cascades: symbols vanish, new ones drop to fill empties, continuing until no new wins occur.

The Wild Symbol (lightning bolt) substitutes for all pay symbols to complete clusters. Seven distinct Rainbow Reels correspond to the symbol colors, each capable of activation via cloud symbols, applying a reel-specific multiplier to any win featuring that color anywhere on the grid. Reel multipliers reset per base spin but persist during awarded extra spins.

Bonus Features

Core mechanics revolve around Rainbow Reels and cloud-triggered modifiers, building multiplier potential across cascades and extra spins.

Double Rainbow slot – feature spin

Multiplier Clouds land on reels, revealing values of x2, x3, x4, x5, x10, x15, x25, x50, x100, or x250, added to the reel’s multiplier and applied to matching-color wins.

• Normal Cloud: Activates its reel, adds multiplier value, awards +1 extra spin (all active reels persist).
• Double Rainbow Cloud: Activates its reel, adds multiplier value to it, then distributes the value to all active reels; awards +3 extra spins (all active reels persist).

Full Rainbow triggers when all 7 reels activate simultaneously: a random x2, x3, x4, x5, or x10 global multiplier boosts every reel multiplier, plus +5 extra spins (all reels persist).

Extra spins chain via repeated clouds, escalating multipliers—up to x259 observed in testing—for high-volatility bursts despite the medium rating.

Bonus Buy (where available) offers instant access:

Betting Options and Payouts

Bets range from €0.10 to €100 per spin, accommodating low-stakes casual play and higher-roller sessions. The default RTP 96.38% varies by operator (down to 88.38%), with Bonus Buy tweaks noted above. Rated medium volatility (3/5), it balances frequent cascades with multiplier-driven peaks, though extra spins can yield dry runs or explosive chains. Maximum payout caps at 5000x the bet, achievable via stacked multipliers and Full Rainbow boosts. Hit frequency, bonus frequency, and max win probability are not specified, but gameplay favors building reel multipliers across colors for cluster scalability.

Double Rainbow slot – feature buy

Conclusion

Double Rainbow excels in accessible cluster-pays with persistent Rainbow Reels and escalating cloud multipliers, offering tantalizing potential up to 5000x in a mobile-first Pocketz format. Strengths include color-matched multiplier application to any grid win, chainable extra spins, and Bonus Buy shortcuts for faster action. Weaknesses encompass polarizing cutesy aesthetics that may feel juvenile, occasional multiplier setups without matching clusters, and variable RTP demanding operator checks. Players can test the slot risk-free using the built-in demo available on this page. Overall, it delivers uplifting, harmonious spins for candy-slot fans, blending simplicity with smart volatility for casual yet rewarding sessions.