|Eklenme Tarihi||20 August 2014|
Kill boss monster that appears in each round.
- You can purchase or upgrade weapons by pressing [B] keyboard button in the shop area.
- You can recover HP by pressing  and  keyboard button and [R] keyboard button to use battle revival.
- If your team is annihilated and failed the mission, you can press [R] keyboard button to use round retry item.
- There is a maximum dollar benefit to the person who uses the round retry item.
- Ranking is only record-able if you select $800 as a minimum possession amount. (Unable to use item related with revival)
- If you clear the round with survival status, you can receive more bonus for the round clear.
- Round 1: Juggernaut
- Round 2: Siege Type Deimos
- Round 3: Phobos
- Round 4: Siege Type Phobos
- Round 5: Oberon
A key with strong zombies' energy surrounding it. Looks like the key holder will be falling into deep sleep where the fearsome nightmare await.
- Can play Nightmare map if a room host holds this item.
- There is a 50% chance to obtain the this item if you cleared any Zombie Scenario Season 1 maps.