http://imgur.com/mKQh8zr
Please Note: The picture shown is all the proof I have (admittedly not much) and the playtime doesn't seem to count loading screens or menu time, hence the actual time being different from the in game time. This was a pretty dull run, all things cconsidered. Air Battles were absolute snoozefests, and the Land Battles were still very easy, if a little less boring. Honestly, this is just an RNGfest. If you get super awesome claws or convenient skills early on, you'll do really well. If not, welp, you're restarting. I happened to get Artillery Claws in C2 thanks to convenient fusion options, and those carried me through the entire game quickly. Could probably be done post 4:10, or maybe even Sub-4 hours if the RNG was REALLY kind, but I'm happy with this result.