We have 2 cheats and tips on GameBoy. If you have any cheats or tips for Adventure Island please send them in here. You can also ask your question on our Adventure Island Questions & Answers page.
At the title scree press right, left, right, left, A, B, A, B to access the "World Select Mode, then enter in 0894 when it asks for a password.
To continue your game you must have the Hudson Bee which is somewhere in World 1. When your game is over hold left and press start!
You can select which island you want to start on by pressing the following combination just after the coconut hits the man on the head at the title screen: Right, Left, Right, Left, A, B, A and B. Then simply press up or down to select your starting island and press A to start your game.