PC? what pc?

Every single NES game or CGB game would fit on a floppy. More or less all GBC and SNES games could compress down to a floppy

At least in many European countries, game consoles were never that big during the 1980-90's, until PlayStation really took off.

However, and to go with your remark,

ZX Spectrum, C64, CPC, Archimedes, Amiga, Atari, plenty of games that would fit into a single floppy.