NOTE: MUST NOT HAVE PROTECTED MODE MEMORY MANAGER ACTIVE (I.E. EMM386.EXE) Oxyd: A challenge in exploration and discovery that introduces the player to inter- esting puzzles, elaborate mazes, friction, velocity, gravity, electricity, magnetism, lasers, prisms and many other aspects of the physical world. Using the mouse, a marble is guided through the Oxyd landscapes. You may even play Oxyd by modem and enjoy a collab- orative thinking experience with a friend. VGA and EGA versions 3.9 for the PC.