Karian Cross is a typical versus-style colour matching puzzle game, with chains and junk blocks and all the usual hallmarks that come with the genre. Obviously, though, it does have one unique mechanical element to call its own, and it does display a pretty high standard of presentation, too. The basic tactics are pretty much a total rip of Puyo Puyo: get three or more blocks of the same colour touching, and they'll disappear, then those above will fall, and if those match too, they'll disappear and so on. Racking up big chains in this manner means dumping lots of junk blocks on your opponent. The first to fill their well up to the top with blocks loses. The unique factor comes in the form of the junk blocks themselves: they're normal coloured blocks, trapped in transparent cubes, and when normal blocks disappear next to them, they're freed from the cubes. Of course, if they match, they disappear.