Arrow keys to move link. You can't swing the sword. Press m to make marin appear and follow you. You can go into marin's house. (The collision in the house might get you stuck in the collision itself or you cannot get out easily if that hold the down arrow then repeatedly and try to get out). Press x for map, analyze it, and press the green flag again. When marin appears, press t to talk to her, this is somewhat important. If you can't click out of the text, spam buttons except t and x, or green flag to clear it.
