10 of the best handheld games ever

Metal Gear Solid: Peace Walker (PSP)
Pretty much a full Metal Gear Solid game squeezed onto the PSP, Peace Walker is set 10 years after MGS 3: Snake Eater and features a similar mix of sneaking, camouflage-wearing and combat. Also, there's a character called Hot Coldman, which is brilliantly crazy even by MGS naming standards.