Poor Mach Kick, you should join in on the ponies in their frollicking. Although it looks like you're about to go decepticon from the sweetness.
Mach Kick doesn't like the fact that he's the only canonical horse in all of Transformers, so he automatically gets ponied by everyone: http://www.dvandom.com/kitbash/MLMachKicktoy.JPGhttp://www.dvandom.com/drawings/MLMachKick.JPGBattle Unicorn has a better attitude, at least...the fact that he's harder to draw has kept him from being ponied as extensively, I expect. So far, I haven't seen any Stampedes (Battle Unicorn redeco) as ponies.
I love his Dr. Whoof WWU Haters Gonna Hate face. That's my favorite part of this whole comic.
The happy Unicron in the end is fantastic, come now all, let us welcome him to the herd :D