Great Blue (3Win8): how the Pick 2 Shells free spins work, and the red or black gamble screen
The 3Win8 build of Great Blue prints its bonus rules on the help page. What the shell pick adds, how retriggers work, and how the red or black gamble doubles a win.

Cartridge label
- Reels
- 5 x 3
- Lines
- 1 to 25
- Wild
- Orca, doubles wins, 5 pays 10000
- Free spins
- 8 at x2, up to 33 spins or x15 after the shell pick
- Jackpot bars
- Minor, Random Jackpot, Major
Controls
- LINES - / +
- 1 to 25 lines
- BET - / +
- Stake per line
- GAMBLE
- Replaces AUTO after a win; opens the red or black screen
- COLLECT
- Banks the gamble amount and returns to the reels
Great Blue is the Playtech ocean slot that turns up in nearly every Malaysian app, and the 3Win8 build is a handy one to learn from because its help page prints the whole bonus in plain English. This page is about that bonus and about the gamble screen. For the symbols one by one, see Great Blue on ACE333.
The two symbols that matter
The help page gives the orca as WILD: it substitutes for all symbols except the scatter and doubles all wins it takes part in. Its own pays are 10 for two, 250 for three, 2500 for four and 10000 for five.
The pearl in a pink shell is the SCATTER, headlined "UP TO 33 FREE SPINS, UP TO x15 MULTIPLIER". It pays 2, 5, 20 and 500 for two to five anywhere on the reels.
The shell pick, step by step
The bonus text on the hero image reads, in order:
- Three or more scattered pearls trigger the feature.
- You automatically get 8 free spins with a x2 multiplier.
- A PICK 2 SHELLS screen shows five pink sea shells. You choose two, and each adds extra free spins, a bigger multiplier, or both.
- The ceiling is 33 free spins or x15.
- Three or more scatters during the free spins add 15 more spins at the same multiplier.
So the minimum is 8 spins at x2, and the pick decides how far above that you go. Note the "or": the page says up to 33 spins or up to x15, which suggests a pick heavy on spins comes with a smaller multiplier and the other way round.
The main screen on 3Win8

The balance box (58.66) is top left, with a scrolling lobby ticker, BACK, a ? help button and settings beside it. Above the reels are MINOR, RANDOM JACKPOT and MAJOR. The bottom bar has LINES and BET with minus and plus buttons, a small BET / WIN box, then AUTO and SPIN. With all 25 lines at 0.10 the total is 2.50.
The gamble screen
After a win, AUTO turns into GAMBLE. Tapping it opens a separate screen with a red pearl marked RED, a black pearl marked BLACK, and a face-down card between them. BET shows what is at risk and DOUBLE TO shows what a correct guess pays.

In the captures, a 0.08 line win was gambled once. The card came up the ace of spades, BLACK had been chosen, and WIN showed 0.16 with DOUBLE TO 0.32 offered for the next round. LAST CARDS keeps the history, and COLLECT takes the money back to the reels.

Pacing
Free spins at x2 or more are where this game pays, and 3 scatters can land at any line count. Keep the line bet low enough to reach them, and use GAMBLE only on small wins you would not miss.
More 3Win8 titles are in the 3Win8 overview. To play, ask for a 3Win8 game ID.
Troubleshooting and questions
Can the free spins retrigger?
Yes, according to the help page: 3 or more scatters during free spins add 15 more spins at the same multiplier, and it says more free spins can be won infinitely.
How is this different from Great Blue on ACE333?
The game rules are the same Playtech design. The 3Win8 skin has a blue LINES and BET bar with a GAMBLE button, a RANDOM JACKPOT with Minor and Major bars, and a help page that spells out the bonus rules.
Press start
Want to play it on 3Win8? Get a game ID through our partner link, then set a spending limit before the first round.