Sega Marine Fishing

Hint: Catching fish easily:
Note: The fishing rod controller is required for this trick. Once you get a fish on the line, reel it in and move the analog stick in a counter-clockwise motion. You should be able to land any fish in a matter of seconds.
Information in this section was contributed by Denis Hurm.

Hint: Hidden fish and other items:
Successfully complete arcade mode, then choose original mode and select the free fishing option. You can now access The Hideaway Of Big Fish location. Successfully complete arcade mode twice to unlock the Fishing Port location in free fishing.
Information in this section was contributed by Nick Manochio.

Successfully complete arcade mode three times to unlock Dogtooth Tunas in the Fishing Port location. Successfully complete arcade mode four times to unlock the Napoleon Fish in the Coral Reef.

Hint: Sea Turtle appearance:
Go to the Offing stage and equip a sinking lure. Cast to the near the first floating thing. If done correctly you should see a sea turtle on the way down. Keep trying until it appears.
Information in this section was contributed by SuperSonic738.

Hint: Whale appearance:
Go to the Offing stage and equip a lure that sinks and not a diving lure. Cast as far to the left as you can and let the bait sink. While it is sinking try pressing Left or Right to change the camera and jerk the rod. You may be able see a whale. Keep trying until it appears.
Information in this section was contributed by SuperSonic738.

Hint: Get any lure:
To get any lure, catch large skipjacks (16 to 24 lbs) or small barracudas (you will be able to pull them out without a stick or net). Use any desired lure.
Information in this section was contributed by mikeschall.

Hint: Get any article of clothing:
Go to the offing and catch small blue marlins (about 60 to 100 lbs). You can do this easily with the first popper A you are given. To get different character's clothing (Captain or Macala), use their specific rod under items and do the same thing.
Information in this section was contributed by mikeschall.

Hint: Using the aquarium:
Put items you get in the aquarium as soon as the are obtained. You cannot get some items if this is not done.
Information in this section was contributed by mikeschall.

Hint: Other items:
To get other items, aim for the biggest fish on any particular level. The last item you will be able to get with most fish is the metal fish of that type.
Information in this section was contributed by mikeschall.

Hint: Catching the coelacanth:
The hardest fish to catch in the game is the coelacanth and the bluefin tuna in the fishing port, because there is no specific lure to catch them. Aim to the left side of the screen near the dock and use the first big splasher lure to catch the coelacanth. You usually have to get other fish to chase it before the coelacanth gets interested.
Information in this section was contributed by mikeschall.

To catch the coelacanth in the fishing port section, the small silver minnow works excellently. If you hook into a big one, this will be one of the hardest fighting fish in the game.
Information in this section was contributed by alobell.

Hint: Catching the bluefin tuna:
Use the first big pencil popper and fish just to the right of the dock as far back as it will go. You have to dance the lure just around there to get them to bite.
Information in this section was contributed by mikeschall.