CONGRATS, Zero Master! Finally, after 24 years! "To win the game you must get 100% on level 15 by John Romero." Great trick getting to that secret! https://t.co/Im9BSP5Eyh #doom

— 𝕵𝖔𝖍𝖓 𝕽𝖔𝖒𝖊𝖗𝖔 (@romero) August 31, 2018