4AM Theater

4AM Theater is a anthology horror block on SurgeAnime, produced and programed by Studio Acesky. It airs on 4am JST on early Sunday mornings. It has five 4.5 minute episodes, with a rotating list of series. A rerun airs on early Saturday mornings at the same time. The block launched on January 10, 2015. This is the second of SurgeAnime's 30 minute blocks.

Since 2017, Kotake Niou has acted as senior creative producer of the block until 2022, when Nakai Ano (of Folklore Horror fame) took over.

In 2018, Crunchyroll announced exclusive worldwide streaming rights to the series.

Series

 * Theater of Horror (2015-present)
 * Producer: SurgeAnime
 * Studio: Studio Acesky Studio D (2015-2020) / ToonIn & Acesky All Digital (2020-present)
 * Mystery of Darkness (2015-2017)
 * Producer: Rv S Pictures
 * Studio: Rv S Tokyo
 * School Stories (2015-2020)
 * Producer: SurgeAnime
 * Studio: Studio Acesky Studio D
 * Russian Experiment (2015-2017)
 * Producer: Oiyu Media
 * Studio: The Animation House
 * Small Town (2015-2016)
 * Producer: SurgeAnime
 * Studio: SurgeKorea Animation
 * Fear Reigns (2015-2018)
 * Producer: SurgeAnime
 * Studio: Studio Acesky Studio D
 * Jin (2015-2018)
 * Producer: Oiyu Media
 * Studio: Oiya Media In House
 * Z-Files (2015-2020)
 * Producer: SurgeAnime
 * Studio: Studio Acesky Studio D (2015-2019), Vision Animation Japan (2019-2020)
 * Kaiju (2016-2020)
 * Producer: Oiyu Media
 * Studio: Gonzo (2016-2018), Studio Acesky Studio E (2018-2020)
 * UFO (2016-2018)
 * Producer: Oiyu Media and SurgeAnime
 * SurgeKorea Animation
 * Attacker (2016-2018)
 * Producer: Oiyu Media
 * Studio: Oiya Media In House
 * Deathblade (2017-present)
 * Producer: SurgeAnime, Square Enix
 * Studio: The Animation House & Acesky Animation Services of Canada
 * Laughing Salesman (2018-present)
 * Producer: SurgeAnime
 * Studio: Studio Acesky Studio E (2018-2019), Vision Animation Japan (2019-present)
 * Kai (2018)
 * Producer: SurgeAnime
 * Studio: SurgeKorea Animation
 * Cybermystery (2018-2020)
 * Producer: SurgeAnime
 * Studio Acesky Studio D
 * Monster of the Week (2019-present)
 * Producer: Rv S Pictures
 * Studio: Rv S Tokyo
 * Final Words (2019-present)
 * Producer: SurgeAnime
 * Gonzo
 * UFO II (2020-present)
 * Producer: Oiyu Media and SurgeAnime
 * Animation: Acesky All Digital & SurgeKorea Animation
 * Experimental Hell (2020-present)
 * Producer: Venga Seikunime & Firebasket Japan
 * Animation: A.C.G.T & A.P.P.P