Jim Sorenson updated his blog on Tuesday with a new Ark Addendum entitled Ratbat's Transform. As you can probably guess from the title, the article focuses on the transformation sequence for the Generation One Decepticon cassette Ratbat.
Here's an update from Jim, "this week I finish up my cassette transformations. I give you... Ratbat! It's a simple transformation. He basically unfolds, much like the toy. The big difference is that his weapons pop out of his back, instead of being attached manually. And one final reminder: we've got a book signing for The AllSpark Almanac Addendum this Saturday at Emerald Knights Comics & Games in Burbank. 1:00 PM on December 10th.4116 W. Burbank Blvd, Burbank, CA 91505"