Transformers is one of those topics I’m loathe to write about as its fandom is so obsessive there’s plenty out there written already.
So lets just mention the uneasy mix of 3D and 2D animation in the opening. This wasn’t new, I remember Lost Universe have some particularly egregious usage of 3D animation. But the use of 3D animation to represent giant robots fighting is something that permeated the decade.
Here’s the US opening, that wisely does away with all that 3D nonsense: