BIOHAZARD A.T.N. ASSAULT THE NIGHTMARE is a video game in the Resident Evil franchise. It was released in 2002 for mobile phones under the NTT DoCoMo operator in Japan. It was sold as part of a subscription to 'Capcom Party' at ¥350 per month.
街の外れの洋館から救難信号を受け、出動したキミを待っていたのは恐ろしいゾンビども｡ 手にした銃だけを頼りに怪物だらけの洋館を生き延びろ！！" — Official description
The game operates as a First Person Shooter, and features the player roaming around the Arklay mansion shooting at zombies and lickers with weapons such as a handgun; shotgun and submachine gun.