A cheery, uncomplicated quiz-'em-up with some great samples, Mindlock places you in charge of five chaps named Clarence whom you must save from various excruciating fates by dazzling everyone with your unbeatable knowledge of trivia, mathematics and the English language.

The first phase of the game is a straightforward general-knowledge quiz leading on to three rather remedial maths questions. Next it's Call My Bluff time - in which you attempt to figure out the meanings of words like grimalkin and ameliorate. Fortunately, though, Robert Robinson's nowhere to be seen. Finally, there's a strange, rather pointless little section where you have to press the Spacebar at the correct time to plug the gaps in a border.

Mindlock is not the kind of game to invite a few mates around to spend a night of debauchery in front of. It's not very complex, the graphics are simplistic, it's repetitive, but - it's one of those games that you'll strangely find yourself playing one rather sad evening when you're bored with the latest commercial release, there's nothing on the telly and none of your mates are coming out.

As with many other games of this nature, its major strength lies in its unpretentious simplicity. A quaint and freshly attractive game which politely charms rather than wildly impresses. Ideal for quiz maniacs.