I do wish they'd done the rest of the little Japanese Headmaster guys to go along with Shuffler and Leone.
Plus if they were going to do the Monsterbots in TR anyway, the Decepticon Headmaster Junior monster guys could have been pretty easy pretools/retools. Repugnus and Squeezeplay would be pretty close design-wise, as would Grotusque and Fangry, and you could probably get a Horri-bull from the Skullsmasher mold. And it wouldn't be too hard to get the Autobot Jr team done either - 2 cars and a truck base, which you could pretty easily use/remold for another character or two (e.g. complete the Autobot double Targetmaster team with TR versions of Quickmix and Landfill).