Classic Game Room reviews SONIC THE HEDGEHOG: POCKET ADVENTURE for the SNK Neo-Geo Pocket Color from 1999. This CGR review of Sonic Pocket Adventure from Sega for NeoGeo has gameplay from Sonic The Hedgehog Pocket Adventure on Neo Geo Pocket Color showing Sonic gameplay in Black and White HD. This 2D side scroller is like a remixed version of earlier Sonic games from the Sega Genesis like Sonic 2. Sharp visuals, good music and responsive gameplay make this a solid outing on the relatively obscure Neo Geo Pocket and show the potential of SNK's handheld videogame device.