It’s like Un Chien Andalou on mecha steroids, at least according to this review. I’ve just seen it, and I’m inclined to agree.
Transformers: ROTF has mostly gotten pretty hideous reviews, but that’s because people don’t understand that this isn’t a movie, in the conventional sense. It’s an assault on the senses, a barrage of crazy imagery. Imagine that you went back in time to the late 1960s and found Terry Gilliam, fresh from doing his weird low-fi collage/animations for Monty Python. You proceeded to inject Gilliam with so many steroids his penis shrank to the size of a hair follicle, and you smushed a dozen tabs of LSD under his tongue. And then you gave him the GDP of a few sub-Saharan countries. Gilliam might have made a movie not unlike this one.