NeoGeo Pocket was a handheld console released in 1998 by SNK that initially featured a monochrome screen but was later re-released with a colour screen and rebranded as the NeoGeoPocket Color (I'll overlook the missing 'u' on this occasion). It's a nifty little piece of tech and has a rather lovely clicky microswitch thumbstick like most other NeoGeo consoles do. The system's library isn't very large and the screen can be a bit hard to see sometimes due to it's lack of either a front or back light, but it does hold a certain charm and the library is brimming with cool portable versions of popular SNK franchises like The King Of Fighters and Samurai Shodown et al.
- King of Fighters R-2 (links with King of Fighters ’99 Dream Match and Evolution)
- SNK vs Capcom – Match of the Millenium (links with Capcom vs SNK 2)
- SNK vs Capcom – Card Fighter's Clash (links with King of Fighters Evolution)
- SNK vs Capcom – Card Fighter's Clash Expand Edition (links with Capcom vs SNK 2)
- Cool Cool Jam (links with Cool Cool Toon)
In summary then, the link cable is a nice little oddity to own - especially as it was relatively inexpensive and they are now quite rare. As for usefulness? I'm not sure I can recommend that you go out and spend a small fortune on one. There's no real benefit as far as I can see other than it's a cool item to have in your collection. The build quality is very nice and the little box halfway down the cable has a nice chunky SNK logo on it...but that's about all there is to it. I did read in an old Dreamcast magazine that Sonic's Pocket Adventure was going to have some sort of connectivity with Sonic Adventure 2, but I guess that never materialised.
As a footnote, I guess it's quite apt that these two systems have intertwined lifespans. They do have certain similarities in that they were both the plucky underdog and both lived relatively short lifespans. Happily though, they've now found each other again in the great Dreamcast Junkyard in the sky and the link cable is the tie that binds them.