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Play Mega Cash Boost for Free

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Octoplay
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Mega Cash Boost Slot Review

The Mega Cash Boost online slot is a vibrant, fast-paced game where high card symbols and fruit form winning combinations across a 5x3 grid. Cash prizes from 1x to 10x sit above the reels, increasing in value as blue lightning bolts land in view. Jackpots grow when gold lightning strikes, while colorful diamonds fill a meter to unlock a respins round. Once the respins come to an end, all diamonds in view reveal cash or jackpot prizes to a 6,200x maximum value.

Game Info

Return to Player
95.73
Volatility
Low Medium
Provider
Octoplay
Octoplay
Autoplay
Bonus Buy
Bonus Rounds
Cascading Reels/Avalanche Feature
Cluster Pays
Expanding
Free Spins
Gamble
Jackpot Slots
Megaways
Mobile
Multiplier Symbols
Mystery
Scatter Symbols
Spreading
Stacked
Sticky
Number of Paylines
5
Layout
5-3
Min Bet
0.1
Max Bet
150
Release Date
9/3/2025
Last Update
9/19/2025
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Enter the Glitzy Game Show

The dazzling graphics and lively soundtrack would suit any TV game show, with lots of flashing neon, animations, and bright colours across the Mega Cash Boost slot machine grid. Sliced high card symbols in a range of eye-catching shades mix with a cocktail of fruit apples, plums, and watermelons among the halved symbols.

Multipliers and jackpots surround them, ready for lightning bolts to boost their values on any spin.

It’s part of the Octoplay range and comes in desktop and mobile versions at our picks of the best casino sites, with the widest collections of games.

Grab a Slice of the Action

It’s a medium volatility slot with returns of 95.73%. The bet range is from just 0.10 to 150.00 and you win whenever symbols match from the left across any of five paylines. Play the Mega Cash Boost slot online and here’s what each is worth as a portion of the stake –

Symbol
Two on a Payline
Three on a Payline
Four on a Payline
Five on a Payline
10, J, Q, K, A
-
X1
X2
X5
Apples
-
X2
X4
X10
Oranges
-
X2.5
X5
X15
Plums
-
X3
X9
X25
Watermelons
X0.5
X5
X25
X100
Wild Symbol
-
-
-
X150

Options include Autoplay, Turbo mode, buying into features, and you can play with flat currency or even crypto at the most popular Bitcoin online casinos.

Lightning-Fast Features

Nine Cash Prizes from 1x to 10x sit above the reels, with six jackpots from 15x to 1,000x to the left. If a blue lightning Cash Boost symbols lands on the reels of the Mega Cash Boost slot machine, up to five Cash Prizes increase by 1x, or up to two of them that don’t already have multipliers get an increase of 2x or 3x. Both effects can even trigger at the same time.

It’s an online slot with increasing jackpots, triggered by the gold lightning Cash Boost symbol. The values of each jackpot can grow as follows, to a maximum of twice their base values –

  • Mini Jackpot – Starts at 15x the stake, increasing by +5x.

  • Minor Jackpot – Starts at 25x the stake, increasing by +5x.

  • Major Jackpot - Starts at 50x the stake, increasing by +10x.

  • Super Jackpot - Starts at100x the stake, increasing by +20x.

  • Mega Jackpot - Starts at 250x the stake, increasing by +50x.

  • Grand Jackpot - Starts at 1,000x the stake, increasing by +20x.

Whenever gold lightning hits, up to five jackpots grow, up to two prizes without multipliers get 2x or 3x values applied, or both effects happen at the same time.

Spin the reels of this game for the first time and there’s a warm welcome as random cash and jackpot prizes have an instant boost to their base values.

The main Mega Cash Boost online bonus feature is a Hold & Win respins game, triggered at random as diamonds collect in a meter. You’ll get another head start, with a red diamond on the grid as soon as you load the game. Once the meter adds at least five diamonds to the reels, other symbols drop away, and you get three respins with just more diamonds or blanks. Any new diamonds lock in place and reset the spin counter.

Respins run until there are three in a row with no diamond symbols, or they fill all 15 spots on the reels. Blue versions then reveal any Cash Prize, while gold diamonds display any jackpot apart from the Grand, and red diamonds can show anything apart from the Grand jackpot. If 15 diamonds are in view, you win the Grand prize on top of anything else, to a maximum of 6,200x your stake.

Come on Down to Similar Games

Enjoy the thrills of licensed games including the Deal or No Deal Power Time slot from Blueprint Gaming and the MegaJackpots Wheel of Fortune On Air slot by IGT at the top-rated casinos.

Will Lightning Strike Twice?

Dazzling graphics combine with a great range of extras and the chance of a nice win on any spin. Play Mega Cash Boost for free on this page and you’ll be just as dazzled as lightning boosts prize values, but, of course, you’ll need to launch the Hold & Win respins to grab your share of these.

It’s a game that rewards patience. You can still collect payline wins, helped by the wild symbol that substitutes for others, but once the respins start, wins are certain from the five or more triggering diamonds. Hopefully, far more will appear before the round ends. Join the excitement of a virtual game show as you play the Mega Cash Boost online slot at our favorite casino sites.

Mega Cash Boost FAQs

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