The gameplay to this one is extremely simple, which certainly makes explaining things a lot easier. There are 4 things at the top of the screen which deposit coloured shapes at random intervals, and at the bottom there's a line of holes. You have to move this left and right so each shape falls through the corresponding hole.
Those 'things' at the top of the screen move gradually downwards - they move up if you can get two or more shapes to fall though holes simultaneously, but if a shape misses the correct hole then they move down loads (and won't move up again). Get enough shapes through holes, and the bar at the bottom changes, and (on later levels) new shapes start falling. You can choose your starting level as well.
Simple, eh? Yep. Boring, eh? Yep. In fact, completely tedious, eh? Yep, 'fraid so. Of course, this could be because I'm now a mature responsible adult (cough) because I'd imagine that it's one for the "younger players" (as we often refer to them). It may appeal to them, but as most would prefer to be blasting the crap out of some mutant alien scum, I'm afraid that it's just too much of a nob idea. (And it has nothing to do with Dizzy either - he simply sits in the middle of the screen and does nothing. What a con, eh?)
It's a bit like Tetris really (sort of). Just not half as good.