The Legend of Zelda: Link’s Awakening Level Editor (LALE) is an editor that contains many features for making a basic ROM hack for the Gameboy Colour game: Link’s Awakening DX.

In the version 1.20 release it contains:

• Full map editing features including map data.
• Text editing.
• Warp editing.
• Enemy and object placement.
• Dungeon event editing.
• Overworld and dungeon minimap editing.
• Chest editing.
• Player initial position editing.
• Sign pointer editing.
• Owl statue editing.
• Palette editing.
• Sprite bank editing.

And many more little features for hacking Link’s Awakening.