There are two high-paying symbols in the boom tree slot, which are gold coin wild symbols and gold coin bags. If you rotate up to 5 symbols together, both icons can reward up to 8888 coins. There are many exciting moments throughout the game, rewards and a sense of continuous bonuses that can be triggered at any time.
In general, the reward is the best 8888 coins, which is another nod to Chinese culture, because the 8th is their lucky number.