The four primary portals connecting Super Metroid (Crateria, Norfair, Maridia, Gold Torizo) to A Link to the Past (Lake Hylia, Old Man Cave, Ice Rod, Misery Mire) allow for seamless movement between the, otherwise, distinct game worlds.
In this "solid paper" of a game, items from both titles are shuffled and scattered across both game worlds. You might find Link's Hookshot in the depths of Norfair or Samus's Morph Ball in a chest in Hyrule. Core Mechanics super-metroid-game-link
: The games are linked via four cross-game portals located at specific points, such as the Crateria Map Room connecting to the Lake Hylia Fortune Teller. The four primary portals connecting Super Metroid (Crateria,