Use the up arrows to go up, the down arrow for going downwards, the right arrow for going right and the left arrow goes right. And once you get the orange and white fish home, click the green flag again, and you'll find a whole audience waiting to applaud you!
Don't try to drag Andy; he doesn't exactly like it. Click the"stop" button quickly, after you've got the audience's approval; or Andy'll get stuck again! If you hear the "Sorry" voice, well, you lose, so try hard!