Archie Comics also had Mobius be a thing. It's all down to SEGA of America pulling The Matrix and deciding organic batteries sounds better than wetware CPU, despite everyone with a passing knowledge of Biology laughing at that immensely. Basically, think this going on inside the robots: Bio-Energy is also mentioned in the same thing as the animals being used as CPUs. Of course, brainwaves are also bio-energy, but no one seems to think about that. Anyway, this isn't the place for this discussion, so let's leave it there.