In a one-player game, your score is displayed throughout the game in white numerals at the bottom of the screen. Points accumulate as follows:
Successfully jumping frog forward: 10 points.
Successfully jumping a frog into a home bed: 50 points.
Successfully jumping five frogs home: 1000 points.
Rescuing a pink lady frog: 200 points.
Eating a bonus fly: 200 points.
Taking a frog home before its time is up: 10 points per remaining second.