Click on "Coin Value" and you will set the coin size from 0.01 to 2. "Coins" will set the number of coins per line, and "Line" will set the number of lines you want to bet. The Rotate button is used to set the reel in motion, and the AutoPlay option will automatically rotate the reel without interrupting the selected number of times. "Bet Max" is used to set the maximum bet available. "Gambling" will start gambling after winning.
Present is the Wild symbol in the game, which can replace all the symbols in the game except for the dispersion. Symbols can create their own winning combination, and if you log in 5 Wild symbols, you will win 1000 coins.