Beom Jun Koo is a South Korean fourth-generation Unterganger who started making parodies in August 2015. He has 103 subscribers as of 2019-4-26.


He first found out about Downfall parodies through a Korean parody in which Hitler ranted about the Nexon hacking incident in 2011. After discovering Youtube in 2012, he established his Youtube channel but did not make any parodies, despite his dreams to make them, until Delphox announced his DPMV contest in 2015.

Beom decided to enter the contest as his Unterganger debut. However, his subpar video editing skills due to his lack of experience with computers netted him to be last place in the contest. This made him and his entry a running gag in the chat room. Despite this, Beom still carries on Unterganging even with a low profile, claiming that he does it for fun rather than attention. This is seen with his continued efforts in contests such as The "Spooky Hitler" Halloween Contest and the Winter Bunkerland Christmas Contest, and the low placings he got in them.

He was invited to the Hitler Rants Parodies Chat Room by AlphaSkyRaider in December 2015.

In July 2016, he announced a Q and A for his near one year anniversary of Unterganging.

On October 21, 2016, he released the third episode for Hitler Sends Göring to Africa's third season, which has since been retconned and was replaced by another episode made by F-A Alexander, who is now the creator of the entire season.

In January 2018, he announced a second Q and A.

From December 2018 to January 2019 he hosted The Blumbunker Productions Contest.

His channel has reached the 100 subs milestone in March 2019.


During his early days, his parodies mainly consisted of parodies made with Downfall parody creator. He also made "recorded with camera" videos(because he cannot render his videos well) audio-based parodies(which he still makes to this day), and "Beom Jun Koo sings" videos, in which Beom himself appears onscreen to sing random songs that he spoofed with Downfall parody material.

He began using Windows Movie Maker (though much of the footage he used are still camera-recorded) in October 2016, showing a slight improvement in his video's quality.

Being a Brony, he is also known to make many parodies about My Little Pony-related topics.

He also likes making story-based parodies as much as he likes watching them.


Period Parody Category
July 2017 Hitler does Facebook Best Audio-based (UA)
January 2018 The Antic Ultimatum - Episode 2 Best Story-based (DCA)
June 2018 Jodl's Basics In Education And Objecting Best Video Game (DCA)
August 2018 Goreeng (Downfall + Garfielf parody) Most Humorous (DCA)
March 2019 Beginning Unterganger Training Video Best Audio Based and Most Humorous (DCA)

Parody of the Month (DCA)

June 2019 (Krebsdorf warning) Pride Month disaster Best Audio Based (DCA)
July 2019 (Fan request parody) Hitler interviews Kizuna Ai Most Innovative (DCA)

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