"It means something different now than it did when it was implanted. It was convenient.
"Now it's insanity how much they challenged something they claim to be false, which is innovation. I'm not gaining the system. They do have the right to cancel because it's modified. But I'm not gaining the system," he added.
The bio-hacker said he paid his fare and tapped on. "I'm a bit ahead of where the law is and the law is sort of behind where the technology is."
He says he was surprised by the extent to which the situation has been taken. "Most people would agree I'm paying so why is it such a big issue?"
The man received a $220 fine and was ordered to pay $1,000 court costs at Newtown Local Court on Friday.
The self-proclaimed cyborg vowed to fight the case further.
"I will have a legal implant by the end of the year that they can't fine me for. There's an avenue I can ride legally."
Transport NSW said it would not comment on individual cases but, according to a spokesperson, "Opal cards may be cancelled where these are not being used in accordance with the terms of use".