Dear community,
it was several years ago, but I still remember: There once was a megawad for DOOM II, where the story was continued after the end of DOOM II: The cube-throwing head of the great mastermind of hell exploded - but behind it, a stairway went even deeper down into hell. And one level contained extremely small walls to balance over them.
Does anyone know what happened to that piece of work, and which name this file might have? Could it even have been banned, due to a too close relation to the original DOOM II?