Flamewall
Flamewall is an upcoming hell themed top one extreme demon set to be verified by OneAlphaHelix. The level is 7 minutes and 24 seconds long, posing quite an endurance test. OneAlphaHelix currently has 57% on the level. The level has many parallels with another upcoming top one, Ascension to Heaven; although Ascension to Heaven has a starkly opposite theme of heaven and the sky. Just the record of 57% is estimated to be around Slaughterhouse difficulty, which would mean that Flamewall is most likely harder than Avernus, Tidal Wave, and Ascension to Heaven.