We have 1 cheats and tips on GameBoy. If you have any cheats or tips for Sea Battle please send them in here. You can also ask your question on our Sea Battle Questions & Answers page.
Once you have viewed the 'Title' screen animation you will be returned to the 'Credits' screen where if you hold down Up + Right + 'Start' when the screen fades out and then release 'Right' you will see a hidden developer message.