Despite the files being present in the update for a long time, it was not until June 13th, 2015 that they were confirmed to represent real DLC content. On that date,
Random Talking Bush, an administrator of and contributor to the site The VG Resource, revealed that he had successfully downloaded the 1.0.8 update of the Japanese version of
SSB4 from Nintendo's servers before it was set to release; he then proceeded to datamine its contents and post links to them on his twitter account, showing the characters'
ending videos, official art, costumes, and trophies, along with the rest of the planned DLC. Later during that day, crediar was able to test out Lucas, Ryu and Roy before their release on
his Twitch stream by editing the files to run over Mario.
Parts of the stream were
uploaded to YouTube, but have since been taken down by
Nintendo of America on copyright claims, similar to how they took videos down after the ESRB leak. All videos on major YouTube channels talking about the leak were also taken down, including those on
GameXplain and the late
Desmond Daniel Amofah’s Etika World Network.