The tough thing about making a Transformers game is that you can't just make an action game about giant robots. You've also got to be able to handle the vehicle side of things, and there aren't a lot of studios out there who are equally adept at making racing games or flight sims as they are at making big robot action games.
Transformers: Galactic Trials, in development from 3DClouds, seems to be leaning more heavily on the racing side of things. The singleplayer mode has you traversing...