Once the fish bites and starts swimming quickly to the left, tap "X" once. When the fish slows down, reel it in. It should not struggle. (This does not work on the "Lake" level.)

In the stream creek level fish as you normaly would, and when you see the fish about ready to bite the bait, look for the bubbles that come out of the fishs mouth, when this happens press x and o simultaniously and the fish will automaticly reel in without snapping the line.