Like trefingers said, it's funny how small the actual pcb board is. As a kid, I had assumed that the guts of an NES cartridge was as big as the cartridge itself. I had never seen the inside of one until sometime during 2002 when more websites dedicated to retro gaming stuff showed one. I was actually a little offended that Japan got the more "practicle" sized carts that came in different colors but the US versions were these dumpy clumsy looking grey monstrosities by comparison.