 ┌─────────────────────────────────────┬──────────────────────────────────────┐
 │                                     │                                      │
 │         OUTSIDE THE CAVE            │           INSIDE THE CAVE            │
 │  fresh batteries    = B             │ face to the left      = left-arrow   │
 │  move cursor left   = left-arrow    │ face to the right     = right-arrow  │
 │  move cursor right  = right-arrow   │ face backwards        = down-arrow   │
 │  enter cave opening = up-arrow      │ move forward          = up-arrow     │
 │  display map        = M             │ move diagonally       = <  or  >     │
 │  turn light on/off  = L             │ move backwards        = B            │
 │  open knapsack      = K             │ look down pit         = [PG DN]      │
 │  make new cave      = N             │ look up dome          = [PG UP]      │
 │  erase map          = E             │ go down pit           = D            │
 │  save and quit      = Q             │ go up dome            = U            │
 ├─────────────────────────────────────┤ turn light on/off     = L            │
 │            ON THE MAPS              │ open knapsack         = K            │
 │  update maps        = U             │ display map           = M            │
 │  next sheet up      = [PG UP]       │ map forward           = [CTRL]M      │
 │  next sheet down    = [PG DN]       │ go out (lose updates) = [ESC]        │
 │  put map away       = M or [ESC]    │ save and quit         = Q            │
 ├─────────────────────────────────────┴──────────────────────────────────────┤
 │  The compass appears in the upper right hand corner (inside the cave). Its │
 │  needle always points NORTH. The TOP points to your direction of travel.   │
 └────────────────────────────────────────────────────────────────────────────┘
