Update version 1.0.7389

1. Difficulty adjustment

- Bikini, Tunnel and Cave campaign
Double the HP of Characters who need protecting such as researcher at Bikini

- Addition of master mode
Normal: w/ Laser aiming, wo/ boss
Veteran: w/ Laser aiming, w/ boss
Master: wo/ Laser aiming, w/ boss

2. Gun play

When you use both hand play guns such as minigun, now you can tilt them in line with your hand pulling the trigger just like in real world.

3. Boss

Added new boss to tunnel campaign.

Upcoming updates

- Supports MR device(Mixed Reality)
- Rail scene open
- Modify weapon changing system to more VR friendly one