 If you liked
Majin Tantei Nougami Neuro
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 ...then you might like
Devilman
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Neuro and Devilman shares villains that have or reveals animal traits on their evil/devil forms and the HAL arc has a plotline of paranoia about the criminal drug that turns people into criminals, simillar to how the devils starts to turn every human into devils on the second half of devilman.