I recently started playing a completionist type game, and decided to make this tool to help keep track of Gau's rages:

http://super-aardvark.github.io/ffvi/rage.html

It's not complete -- the "adventure"/walkthrough mode only goes up to the floating continent right now. Also, it doesn't really work on mobile (the menu takes up too much space), and I'm sure there are some features that would be nice to add, but I figured I'd put it out there and see what folks think.

So, feedback please! Is it useful? What other features should it have? If you have a knack for design, how can I make it look better?