Hell Events is a category that describes a wide variety of events. Historically, hell events require the user to spend 
to gain event currency, along with materials like 
, 
, and . At certain milestones, the player is given either a full suit or parts of a suit, depending on the event. They come with free tries, and only return in the same format they originally came in twice, returning permanently to the Wish Gate later. Because of this, events such as Miracle Concert, the Hatsune Miku Event, and Night of Starfall are all considered to have the format of a "hell event".
However, newer "hell events" have come in other formats without milestones, such as pavilions. Though they may fit more closely into another category, all Story Suit events are still classified as "hell events".
For more information, see Event Types.
