Each of the colored coin symbols corresponds to the pig meter placed above the reels. A random blue coin can appear and award free spins equal to the blue pig meter number, which starts at 9. But if the blue coin symbol doesn’t trigger the free spin feature, it can randomly add one extra spin to the meter, up to 100.
Meanwhile, the red pig meter shows the number of additional wild symbols on the reels. The red coin can activate a bonus awarding 7 free spins with the amount of additional wilds matching the number displayed on the meter (15 by default). If the red coin doesn’t trigger the free spins feature, it may add 15 or more wild symbols to the meter, up to 100.