Inventory items can also be used as cursors with the active inventory item also available in the cursor cycle.

Others involve competing against a computer-controlled opponent, completing a sequence in a limited number of moves, operating mechanisms, or using an inventory item.

Cards would typically be punched with some initial information, such as the name and location of an inventory item.

As in all adventure games, inventory items are used to solve various puzzles (and in this game, often to allow interface with alien technology).

The guide gives a step-by-step walk-through of the entire island as well as instructions on how to find important inventory items.