Weirdwolf is yellow and teal, and this is like 99.99% of why I like him so much. That plus the offwhite and red trim to me is the Italian finger kiss of color schemes. It's the same reason I love RID Destructicon Bludgeon. It's why BotCon 2007's Weirdwolf redeco of Cybertron Snarl is one of my all-time favorite convention toys. I love those colors. They're great. A++ Would buy again.
I decided to get the TakaraTomy version of Weirdwolf for a handful of reasons. One, he comes with a yellow and teal monkey, which is hard to say no to. Rarigo (which is "gorilla" spelled backwards in Japanese) is a redeco of Apeface's Titan Master vehicle, which triplechanges from gorilla to jet to gun and back. If I can get a Weirdwolf that also comes with a monkey, why wouldn't I get the one that comes with a monkey?
Secondly, judging from online photography, TakaraTomy's Weirdwolf had a teal I liked better than Hasbro's. Mind, this is going off of promo renders and colors-not-always-true-to-in-person photography, but I did my best to judge the two teals, and I decided on the Japanese one instead of the domestic. I am very particular about my teals! The BotCon Weirdwolf's teal is a smudge too green, and it's not SO green that it ruins the yellow-and-teal deal for me, but it's on the edge. TakaraTomy Weirdwolf looked just right.
Plus their Monzo got his face painted, which is a plus.
Things I'm missing by not having the Hasbro one, are the nice translucent red highlights inside the wolf head. Takara paints over a lot of that with light gray. On the other hand, I really like the two-toned red of the eyes and face. The face is a tad pinker than the eyes, and it's a nice, subtle effect.
The toy is pretty adept for your run-of-the-mill quadruped-to-biped transformation. The arms transform into forelimbs and the legs transform into hindlimbs, as often the case with beastformers. But it's a much better four-legged mammal than Alpha Trion's unikitty mode, with hind legs that look a lot more natural, and so I'm pleased. The torso expands for beast mode and collapses to a shorter length for robot mode. The wolf head rotates at the neck, and also there's a small amount of left-to-right movement as well. The jaw opens, which is usually a feature on beastformers, but is still always welcome.
Weirdwolf's tail becomes a sword, and there's a cannon weapon that plugs into his beast mode's hindquarters which can also be a seat for a Titan Master head dude. And, of course, Weirdwolf can point his gorilla gun around if he wants.
I hope the next Transformers line-wide gimmick is Monkey Weapons.