Hidden deep in the earth is the core. To reach it you have to complete all three stages of this game. Firstly your craft descends through clouds, birds and aeroplanes and you have to navigate a clear path.

Secondly, after successfully through the sky you go underground negotiating the cave and caverns.

It takes a little while to realise that there is only one way through but if you complete this the third part looms up and all that stands between you and the core is the 3D maze.

After a number of frustrating attempts you should reach the core. A little light-hearted relief will be found here.

If you collide with any part of the scenery your score and the highest so far is displayed along with an invite to play again but no score is given for a successful mission.

Each new game is the same as the last, so once you have reached the core a few times there is very little incentive to play again.

I had no problem in loading this game and found the screen instructions clear, although the spelling of the word 'plains' for planes was a little ambiguous.

The graphics are neat but colour would enhance the game.

C.E.