Card-based games are really less about the story than they are about the cards themselves. Adding a single, powerful new card to Snake's deck can completely change your strategic outlook. Both Metal Gear Ac!d games use the same rule system, and cards generally fall into one of four categories. EQUIP cards go into one of your equipment slots until they are used, like armor, for example. USE cards have a one-time effect (like weapons), or can be used for movement if you don’t have a target. MOVE cards are specifically for movement, and COST cards allow you to play more cards from your hand in a single turn. Of course, there aredozensof cards that are special; rare breeds that can magically turn the whole game on its head. Combinations are endless, maddening and thrilling all at once.