Frogger Instructions: To play Frogger online you need to get the frog safely to the other side of the road and the river. So first you'll need to dodge cars and then you'll need to jump on logs to get across to the safety of your lilly pad. Remember some logs can sink into the water and your frog will die because in Frogger your frog has forgotten how to swim. Use the arrow keys on your computer's keyboard to move the frog from side to side and forward or back. It's also used to jump onto the logs and finally to the lilly pads.