If you're looking for a challenging 3D game then remember there's always a light at the end of the tunnel.
In this game you have to steer yourself through the tunnel which comes toward you in multi-coloured 3D. Your journey is made harder by the various hungry creatures intent on eating you!
If you are eaten or touch the sides then you lose one of your nine lives. For your protection you are equipped with a creature zapper. You must zap the requisite number of creatures before you can progress to the next stage.
One of the most talked about pieces of Spectrum programming awaits you at the end of stage five - a London tube train comes hurtling towards you. If you're unlucky then it'll plough straight into you, from which there is little hope of escape.
If you manage to sidestep it then you'll see it pass in all its glory complete with lights, and passengers at the windows. The game runs on any Spectrum, and two versions are available. The smaller version lacks a demo mode and also, unfortunately, the tube train.
This cassette from New Generation is certainly worth the £5.95 price tag, but may lack addictiveness once the end of the tunnel has been reached.