By touching the screen to move the frog between the lotus flowers, you could also press the button in the right bottom on the screen to let your frog eat the fly. Eating the fly will increase your points but any fail action will decrease your energy. You could increase your energy by eating dragonfly.
点击屏幕让青蛙在荷叶之间来回跳跃，点击按键让青蛙吃苍蝇，吃到苍蝇会加分，吃不到会减能量，吃掉蜻蜓可以加能量。