Even if extracting NES game data is not your thing, the emulator concept [Matthew] uses might be still worth a read.

The Python learning journey in the Digital Media Online Classroom not only teaches students coding knowledge but also ...

To make your own games, you need to give the computer easy instructions to follow in a language it can understand – code.

Case in point, the Raspberry Pi Foundation’s guide to making a cool little Halloween-themed spot the difference game that hides a goofy little prank. The idea of the game itself is easy enough.