The ad libbing in Beast Wars primarily consisted of "noise"; talking for the sake of talking and reducing atmospheric silence or visual subtlety to a minimum. One particular trait of the dub was that each character had their own unique vocal tic with which they would punctuate their sentences or, more commonly, chant incessantly for no apparent reason. For instance, Waspinator would chant "bun", Scorponok would chant "orya", Blackarachnia would hiss "chā", Rhinox would ramble "dana" and so on. This gimmick was especially pronounced during fight scenes, when characters would repeatedly and comically shout their vocal tics every time they pulled the trigger of their weapons, reducing firefights to a cacophony of unending gibberish.
Many characters underwent considerable changes in personality and characterization. Some of these changes were gradual; Megatron began the series as a gravelly voiced and uncharismatic slob who would loudly hock loogies after fits of maniacal laughter. That trait was phased out in exchange for him becoming an effeminate, mood-swinging goofball; his tone of voice transitioning from a ferocious baritone to a silly high pitch at the drop of a hat. He was also made humorously cowardly, shouting out wimpy excuses while retreating (including the claim that he was late for piano practice).
