10 of the best handheld games ever

Tetris (Gameboy)
The most fiendishly addictive (or "addicting" if you're an idiot) puzzler on the planet, and a marquee title for the Gameboy. Pretty much every one of the many millions of gamers who bought Nintendo's monochromatic handheld console owned a copy of the block-building, line-creating Russian classic – and it's still a killer today. Read Gadget Flashback – Nintendo handhelds