Hype and hyperbole are commonplace in boxing but nevertheless Berridge is building a solid resume. The 29-year-old has a 23-1-1 record, with 19 knockouts.
He is still seen as an undercard prospect but that may change in the next 12 months as his profile builds.
"By next year he could be close to the promised land," says promoter Dean Lonergan. "We have big plans for Robert and he is scared of no one."
While others talk him up, the man himself plays it straight. Previously a footballer, he took up boxing as a 19-year-old.
"I went to a gym [Northside boxing] for fitness work," says Berridge. "I got sucked in with a bit of sparring and carried on from there. I've got a good record, I've knocked out some credible opponents so I have done pretty well."
Asked what appeals about boxing Berridge is succinct - "I get to punch people in the head and not get told off for it".
But Berridge, who says he gained his nickname when he started knocking people out, is the type of fighter who sells tickets. He is a big puncher, who relies more on power than panache.
But he moves well, can soak up punishment and puts effective combinations together.
He is also, as he showed last Wednesday and in last November's brutal win over Daniel MacKinnon, able to come up with the goods deep in a fight.
After that bout MacKinnon was hospitalised with bleeding on the brain. MacKinnon won't fight again but Berridge told the New Zealand Herald last week that as a boxer you can't afford to think about the consequences of the sport, either for you or your opponent. Last week's win was particularly sweet, after his previous clash with Foley ended in a controversial draw and Foley had talked up his chances before the bout.
"It was a good win," says Berridge. "I got to defend my title and I got to shut him up. It was important to me. With all his joking around and chitter chatter and all that kind of crap." The southpaw stopped Foley in the tenth round, minutes after the Australian was warned for punching after the bell.
"It was two to five seconds after the bell and he was still bloody punching me in the head."
Berridge will return to the gym next week, back to a training regime that he hopes will take him to the top of the world.
He is still reliant on the goodwill of a team of small backers - "there is no money in it [at the moment] so if you know any rich sponsors ..." - but hopes his day will arrive.
"I am starting to get recognition but that is not what I do it for," says Berridge, who was a furniture maker for seven years before he turned professional.
"I do it because I love to fight."
Away from the ring, you will typically find heavily tattooed Berridge on the golf course.
He is being lined to fight Queenslander Trent Broadhurst in May, before the potential of a big clash with a top five ranked opponent in July.
If successful, it would put him closer to a world title fight.
"The ultimate goal is to be world No1," says Berridge. "I believe I can get there."
