Krafton is set to launch PUBG Mobile version 4.0 on September 4 with six new collaborations and features. The features will include 'Spooky Soiree', which will introduce a new character named 'Ghostie' in the video game. 'Ghostie' will offer main skills like Floating Balloon on Erangel and Rondo maps, and the Guardian on Livik. It will also provide passive skills.