
The hydrophone placed by marine scientists picked up an extremely strange and low frequency sound. Shortly after, communications from the deep sea base, Bethesda, ceased. Operation: Under Water! As an ocean ranger, enter the sea base, Bethesda, and eliminate the ocean depth creatures!


Head shots are higher than normal Kill when stage clears

Destroy the acidic liquid 10 times by Bullet (In the course of a stage)

Fell off and died at elevator

Fell in water and died

Repair completed using repair robots

Kill the "Boss" with maximum HP

Stage1 Easy Clear

Stage2 Easy Clear
Minimum OS: Windows 10 Processor: Intel i5-4590 Memory: 4 GB RAM Graphics: GeForce GTX 1060 Storage: 3 GB available space VR Support: SteamVR. Standing or Room Scale Recommended OS: Windows 10 Processor: Core i7 Memory: 8 GB RAM Graphics: GeForce GTX 1070 Storage: 3 GB available space