Fortune Ox Slot by PG Soft

Second entry in PG Soft's Fortune zodiac series, slotted between Mouse and Tiger. The grid adds a twist the original didn't have - reels 1 and 3 run three rows each, but reel 2 is four rows tall, creating an asymmetric 3-4-3 layout across 10 paylines. That extra center position matters because the Fortune Ox Feature, which triggers randomly during any spin, forces the two outer reels to synchronize. When it fires, reels 1 and 3 lock to identical symbol sequences, then all three reels respin until a winning combination lands. Guaranteed win every time the feature activates. Hit frequency for the feature itself sits around 1 in 130 spins, and it accounts for roughly a quarter of the game's total return despite appearing so rarely.

The x10 multiplier is the other piece. If a single symbol (or Wilds filling in) occupies every visible reel position after a spin, the entire payout gets multiplied by 10. During the synchronized respin loop, the outer reels already match each other, so you only need reel 2 to cooperate - four positions on the center versus three on each side. Wilds substitute for everything and bridge the gap when the center reel lands one off. Compared to Fortune Mouse, which had a flat 1,000x top award and a symmetric grid, the Ox added that center row, the synchronized outer reels, and a multiplier mechanic that doubled the ceiling to 2,000x. No scatter, no free spins, no buy bonus. The game runs entirely on whether that random feature triggers and what the center reel does when it does.