Good Texas games are few and far between. Only a few, including Parsec, have received overwhelming praise.

Texas owners in this country have been starved of high quality software. But a Scottish company, Timeless Software, has come to the rescue with a range of the best games titles available in the USA.

Diablo is a complete change from the usual shoot-'em-ups we're all so used to, and bored with?

Diablo displays a screen filled with 232 different tracks and 116 panels which can be moved around the screen like pieces from a Chinese puzzle. A small black ball is continually rolling along the tracks and as soon as it passes over a track it disappears.

The object of the game is keep the ball in play until all the tracks are gone. The game is lost if the ball rolls into a blank square or off the play area into the border.

The graphics are quite superb and the best I have ever seen on the Texas computer. Movement of the squares is flicker-free and smooth.

My one criticism of Diablo is that it's a little slow, but that can't be helped on the Texas I suppose.

Diablo is available for the TI99/4a with an extended basic cartridge from Timeless Software costing £7.95.