Ogre's Lair Game
by Kevin Martin

The object of the game is to explore the ogre's lair, find the ogre and kill him. The lair consists of 17 levels. The ogre can be found in levels 16 and 17, but he can't be killed until the last one. To progress to the next level, find the exit, and move both characters to it.

This game can be played by one or two players. In one player mode, the player controls one character at a time, swapping between the two with the Return key. In two player mode, each player has their own set of keys for controlling their character. The keys are specified when the program is run.

The various objects found in the maze are as follows:

 Wall         Blocks the player's path
 Trap door    Exit to next level. Next level starts when both players have passed through
 Door         Blocks the way until opened with the correct key
 Key          Opens doors. Although they all look the same, each key opens a particular door
 Monster      Drains the player's energy on contact
 Generator    Generates new monsters
 Gun Turret   One type fires randomly in all directions, while the other fires intelligently, but can only fire in four directions
 Block        Like walls but can be blown up
 Food         Increases the player's energy
 Gem          Increases the player's score
 Cross        Resurrects the other player
 Gate         In two groups, blue and green, they block the player's path when in the wrong orientation
 Changer      Rotates the corresponding set of gates when pressed
 Shield       Increases the player's armour
 Fire Power   Increases the player's firepower
 Fire Speed   Increases the player's fire rate
 Hands        Reach out of the wall and grab player, costing him a shield, fire power or fire speed
 Moving Wall  Player loses energy if hit by wall
 Slide        Moves player to end of slide
 Boulder      Like walls, but the players can push them around
 Transporter  Moves players instantly to another part of the level
 Potion       Changes players energy level. Can be good or bad
 Sword        Used to kill the ogre. Found on the last level
