Early Life
Little of Green's childhood is known outside of his approximate time of birth in the 1920's, under the given name of Greg Green.

Initially, Mr. Green worked as the acting CEO of a successful chocolate company in Switzerland after the second world war under the name Silly Zonka Wonka. Wonka was infamous for his unconventional business practices, such as blaring music from Pee Wee's Big Adventure over factory loudspeakers to motivate the workers, selling dishwashing detergent in the form of candy bars, and, allegedly, spraying windex and tossing live cigarettes into chocolate mixing vats.

After 6 years of working for the company, he acquired over a billion dollars via gambling in Las Vegas. After gaining so much wealth, he took on the identity of Mr. Green for the first time, and left the management of the company. At this time, he also attempted to get back at his old rival in the chocolate business, “Greg’s Chocolates”, by purchasing 100% stake in the company. He then used his position in Greg’s Chocolates to change the company’s business model, accidentally inventing disposable cone-cups. This is believed to have contributed to his Mr. Green’s wealth, although it is not known by how much. During a drug infused frenzy, he promptly used his newfound wealth to purchase over 3 million pounds of limes in Australia, leaving him with only $128.

Mr. Green spent his life in Australia hunting for rabbits and living off of limes in the Australian Outback, the chemicals in the obscene amounts of limes that he would consume giving his skin putrid green hue, a feature that would soon become one of his defining traits. Only vague information about the last of Mr. Green's days living in Australia as well as his exploits before his Vegas trip exists, aside from the fact that he was constantly surrounded by his green henchmen, the Banana Bros, committing lime-related or lime-adjacent crimes while making their way across the globe.

Stay in Vegas

At an unspecified date, Mr. Green returned to Las Vegas and stayed for several days accompanied by his friends and assistant Steve. He quickly gambled away all his money and was kicked out of the hotel. He then fraudulently checked in under a different name, Mr Greenz. This time he managed to win $100,000 at the slot machine, which granted him the High Roller status and entrance into the top casino in Las Vegas. There he used his gambling strategies to acquire more than $400,000, which he subsequently lost completely during a gambling spree at the Blackjack table. He was kicked out once more and had to send his assistant Steve to get his money back. Steve was not successful either, when he lost all his starting capital within a few minutes into the first casino, leaving him with 66$ left in the Hotel Room.

Golden Nugget

In 1996, Mr. Green again returned to Las Vegas to visit the Golden Nugget hotel-casino. However, other than increasing his fortune, Mr. Green also had to use his poker skills to help his ex-girlfriend Dr. Shelly Harkness recover the Chaos Chip, which is a microchip that can predict the outcome of a dice roll or card flip through chaos theory. The Chaos Chip was stolen from Harkness' hotel room and was being used in the casino.

During his initial scouting mission, Mr. Green played Blackjack, Slots, and Roulette and increased his bankroll of $10,000 to $11,525. In his next visit, Mr. Green registered himself under the name "Steven Killsbourg", and increased his initial bankroll of $10,000 to $20,000 to enter a high-stakes Poker Tournament, where he believed there would be a clue on where to find the Chaos Chip. During this tournament, he was approached by fellow player Hugh Swain, who offered his skills in forensic analysis to assist Mr. Green in locating the Chaos Chip. Mr. Green placed sixth out of seven in the tournament, having reduced his initial total of $20,000 to $15,975.