Based on the game kings valley on the msx computer

object of the game is to collect the coins on the 20 levels.
To get the coins you need to break away the stones using the drill or open the hatches using the spanners
which are scattered around the levels, 'you cannot jump while carrying tools'.There are crates to help you to reach anacsesible places (IE:you push them around)
you must aviod the Cybermen or you will need to try again. On later levels there are also one way doors

on the 21st level using the mouse there is a puzzle for you to solve to finish the game.

Controls:

move left-right cursor keys
climb ladder cursor keys
space-jump
D-restart level when you get stuck
every 5 levels there is a level save point
on the 21st level use the mouse to solve the puzzle

F4 Toggle full screen
F6 load last game