It seems with graphics and especially with games, there are two uses of "8-bit graphics" - One, like this, refers to 256 color (or less) graphics - The other,

It seems with graphics and especially with games, there are two uses of "8-bit graphics" - One, like this, refers to 256 color (or less) graphics - The other, refers to graphics made using the constraints of real world common 8-bit computers (in the US, the Apple ][ or C64, in Europe, the ZX Spectrum and Amstrad CPC, etc) or 8-bit consoles, such as the NES and Sega Master System. There are a lot of games which try to emulate these styles, and there are very few true accurate 8-bit (or 16-bit in the case of SNES, Genesis/Mega Drive, Amiga, ST) games. I always appreciated the constraints of having small amounts of memory and so few colors to play with when I was messing around with my Amstrad CPC as a kid.