If you're one of the Xbox 360 owners who hasn't yet explored the Live Arcade Marketplace component of the console's online service, then here's a compelling reason to do so. Effectively, it's a store where you can buy downloaded games using ‘Microsoft Points', and it's a mish-mash of old games, new indie releases and spruced-up classics. Super Puzzle Fighter II Turbo HD Remix (and how's that for the longest game title of the year?) falls very firmly into the latter category.

Not that it's a classic that needs a lot of sprucing up. We've seen it before on the PC back in 1997 - and a PC version of this update is following too - and in that time the concept has barely altered. It's a two-player puzzle game infested with characters borrowed from fighting games, where two players do battle on the same screen at the same time.

That instantly may lead you to conclude that this is a game requiring two players, and you'd be almost right. While the computer will happily control one of them for you - and put up a Hell of a fight in the process - to fully enjoy the vein-pumping competitive spirit the game generates, you need two players.

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The idea is simple. Different coloured gems drop from the top of the screen and you arrange them where you want them to go before they hit the bottom. If you put gems together in squares and rectangles, they make bigger gems.

Every now and then, though, a swirling ball of colour also drops down the screen, and by matching this up with a gem of the corresponding shade, said gem will explode. The more gems gathered together, the bigger the explosion, and crucially the more gems you'll then unceremoniously dump on the other player. These remain effectively frozen until five more gems have dropped, at which point they come into play.

The concept may be straightforward - and it's certainly easier to get to grips with than any words can describe - but the twist is in the chain reactions. Set up a big chain reaction and you can hurl a game-ending blast of blocks over to the other side of the screen. It also means that the pendulum swings from side to side in a game, where seemingly impossible and losing positions can be recovered in two quick gem drops.

The game costs 800 Microsoft points, which in the real world equates to around £7. And that's billy-bargain territory. Because while the enhancements and varied game modes of the admittedly great-looking HD Remix edition are welcome, the core game remains a flat-out puzzling classic. Time has done nothing to hurt it.

A superb puzzle game, whose new clothes may be fitting, but it's the original core that easily justifies the asking price.