You don't see many 2D games anywhere that much apart from games such as Capcom vs SNK.
King of Fighters is anathor great 2D beat em up game where there's a load of great charcters have there own story such Terry or Mai or even Iori. You can choose single-player or team where you can have 3 charcters going through story mode. There are additional features that weren't in the orginal arcade version. Basic gameplay just like other SNK games or street fighter series. Great graphics that remind you of the 90's or in arcades if your on holiday or where you live if the next King of Fighters game comes on to 360 or PS3 it will still be the same butv better view of everything on the series. It can be cheap to get or if you have an emulateor and you could put more charcters in the game if you see videos on Youtube or any other site on the net.