Starring: Frank Welker, Corey Burton, Peter Cullen, Christopher Collins, Chris Latta
Genres: Action, Adventure, Animated, Family, Fantasy, Sci-fi, Thriller, War
Other mistake: When Spike is thrown out of the base by Megatron at the end of the episode, Optimus calls him 'Splik'.
Other mistake: When the Decepticons shoot the monument at the end, Optimus runs to save it, you can see two Optimuses (Most likely because the animators forgot to get rid of the other prime which is just standing there).
Desertion of the Dinobots (1) - S2-E19
Plot hole: Perceptor discovers that the reason for their malfunctioning is because their Cybertonium has deteriorated after millions of years of being exposed to Earth's atmosphere. The key word here being 'millions'. This explains why the original Transformers who crash landed on Earth (4 million years ago) are affected, but newer characters like Perceptor, Powerglide, Hoist, etc. are affected despite the fact that they have only been on Earth recently.
Megatron: Is there anyone brave - or stupid enough - to oppose us? This city is under martial law... and I am the marshal.
Question: What is the true origin of the Constructicons? "Heavy Metal War" claims they were built on Earth by Megatron, but "The Secret of Omega Supreme" shows them already on Cybertron before the war on Earth began. Is this a legitimate mistake or is there a reason behind it?
Answer: This was actually one of many errors in Transformers, the Constructicons MUST have been built on Cybertron, the only transformers genuinely built on earth were the dinobots, reason being Vector Sigma has to give personalities to each and every robot, else they end up like the dinobots, very simple and dumb. For reference watch the episode "The Key to Vector Sigma" which introduces the Stunticons and Arielbots - both Megatron and Optimus Prime have to go to Vector Sigma to get decent personality traits installed, prior to this the new robots are controlled by remote controllers and have no AI.