Famed high-score gamer Billy Mitchell, best known for his leading role in “The King of Kong: A Fistful of Quarters” documentary, was officially stripped of his “Donkey Kong” and other video game high scores and banned from submitting scores to the world’s largest tracker of video game world records following a decision that he cheated, Twin Galaxies announced today.

“With this ruling Twin Galaxies can no longer recognize Billy Mitchell as the first million point ‘Donkey Kong’ record holder.,” the group wrote in its announcement. “According to our findings, Steve Wiebe would be the official 1st million point record holder.”

Variety has reached out to Mitchell and Wiebe for comment.

The decision comes after months of research by the administrators of Twin Galaxies, which tracks world gaming records and helps the Guinness Book of World records validate gaming scores, according to a statement released by the group Thursday morning.

The group writes in an statement released today that Mitchell’s famous”Donkey Kong” score of 1,047,200 was not achieved on an arcade machine — a requirement for Twin Galaxies and Guinness — but rather through the use of emulation software.

“The rules for submitting scores for the original arcade”Donkey Kong” competitive leaderboards requires the use of original arcade hardware only,” according to the group. “The use of MAME or any other emulation software for submission to these leaderboards is strictly forbidden.”

In investigation the allegations against Mitchell, first brought up when Jeremy Young filed a dispute in February, the group “meticulously tested and investigated the dispute case assertions as well as a number of relevant contingent factors.” They also say that at least two different third parties conducted their own explorations and came to identical conclusions. “Additionally,” according to the statement, “during the evidence gathering period of this dispute, numerous experts, hobbyists, and casual observers participated and contributed to this investigation.

“Based on the complete body of evidence presented in this official dispute thread, Twin Galaxies administrative staff has unanimously decided to remove all of Billy Mitchell’s’ scores as well as ban him from participating in our competitive leaderboards,” the group wrote. “We have notified Guinness World Records of our decision.”

You can read the full official statement below:

Based on the complete body of evidence presented in this official dispute thread, Twin Galaxies administrative staff has unanimously decided to remove all of Billy Mitchell’s’ scores as well as ban him from participating in our competitive leaderboards.

We have notified Guinness World Records of our decision.

On 02-02-2018 Twin Galaxies member Jeremey Young ( @xelnia ) filed a dispute claim assertion against the validity of Billy Mitchell’s historical and current original arcade”Donkey Kong” score performances of 1,047,200 (the King of Kong “tape”), 1,050,200 (the Mortgage Brokers score), and 1,062,800 (the Boomers score) on the technical basis of a demonstrated impossibility of original unmodified “Donkey Kong” arcade hardware to produce specific board transition images shown in the videotaped recordings of those adjudicated performances.

Jeremy’s assertion concluded that not only can original “Donkey Kong” arcade hardware not produce the board transition images shown in the recordings, but that these transitions were actually generated through the use of MAME (emulation software.)

The rules for submitting scores for the original arcade “Donkey Kong” competitive leaderboards requires the use of original arcade hardware only. The use of MAME or any other emulation software for submission to these leaderboards is strictly forbidden.

Jeremy Young provided his dispute case evidence to the dispute thread for both public and Twin Galaxies scrutiny and review.

Twin Galaxies has meticulously tested and investigated the dispute case assertions as well as a number of relevant contingent factors, such as the veracity of the actual video performances that the dispute claim assertions rely upon.

In addition to Twin Galaxies’ own investigation into the dispute case assertions, at least two different 3rd parties conducted their own explorations and came to identical conclusions.