Various copies of old NES, SNES, and Genesis games if we are counting collection discs and official downloads through various services. There is no way I am going to try to list them all, but I will name series.

*Super Mario
*Sonic
*Mega Man
*Mega Man X
*Metroid
*Shining Force
*Earthworm Jim
*Chrono Series
*Final Fantasy
*Metal Gear(SPOILER)?!