Connecting lines of coloured tiles is the idea behind Domark's conversion of the Tengen puzzler coin-op.
The tiles roll out of the screen at increasing speed on a conveyor belt and the idea is to catch them on a block at the end of the belt then drop them into a grid to make pattern of like-coloured blocks. The more exotic your pattern, the more points you score, and making certain patterns on certain levels earns you bonus points or level warps.
When it comes down to it, it's a pretty simple arcade game and the Amstrad version recreates the feel of the arcade game brilliantly (the only thing missing is the arcade game's two-player mode). The display is colourful and the jingles are lively.
If you thought puzzle games were dull Klax could be the one that changes your mind.