These allergens can cause sudden attacks of allergies. (healthguidance.org)
Nexon takes a behind the scenes look at technical innovations in Sudden Attack 2 (video in Japanese.) (onrpg.com)
The FTC caught wind of the issue when Nexon held an event for Sudden Attack where users would have to purchase loot boxes in order to acquire 16 puzzle pieces to put together a puzzle and acquire a special prize. (cinemablend.com)