Depending on the background of journey to the abyss, the minimum/maximum dividend to be applied to the winnings is set.
Special minimum/maximum dividends are set in the bonums background, which can be entered in the 4th background.
The dividend to be applied to the symbol win is determined between the minimum and maximum dividends for each spin, and if the win is determined during the win streak iteration, a dividend larger than the previous dividend is unconditionally determined.
However, if the win streak function is no longer repeated, the dividend will be reset to the minimum dividend set in the background.
The UI at the top left of the spin button indicates the maximum number of spins that can be changed from the current background to the next background, and changes to the first background when the number of spins is exhausted.
If the possibility of changing from the current background to the next background increases, the rotation speed of the top key increases to two levels, and the maximum number of spins increases three times for each step faster.
All symbols identify the winning combination by the number that appears on the screen. If there is a win combination, the symbols that make up the combination disappear, the rest of the symbols fall down if there is an empty space, and the empty space is filled with new symbols. This function is repeated until there is no winning combination.