An anarchist by nature, Sonic.exe strays from the original Sonic the Hedgehog's jovial and heroic personality and instead being known for his unrelenting sadism and psychopathic nature, preferring to mentally torture and degrade his victims before robbing them of their souls and freedom.

What Makes Him Pure Evil? Upon learning about our world, he decided that humanity belongs to him as his "toys" and that he should rule over them and all other lifeforms for all eternity and attempts to merge his world with ours to enslave all humans.