Question

How can I mod an old game simply?

Community Answer

The better way is to create a rom hack. A rom hack is basically a mod, but in its own game. Look around at some old rom hacks, get an idea of what you want to do, and then download rom hacking software. Then change the graphics and/or coding. It can be difficult on some games, like for example 3D Games, but you'll get the hang of it!