Final Fantasy I Screenshots
Accessing a still-image catalog of the game is pretty easy. The screenshots are all in game order, so you can just browse to the proper page for the point you're looking for. After that, just click the image and a new window will pop up with a larger version of the screenshot.
Warning: these screenshots show scenes from various sections of Final Fantasy I. If you have not finished the game, the surprise of what is to come may be spoiled by these. View at your own risk.