Update KP006200: Improvements and fixes.

This update includes various improvements. Key changes include:

- Provides new skin: Progressbar NOT 4.0
- Provides a new game mode with a custom difficulty (only in PB NOT)
- Provides Japanese localization
- Provides Romanian localization
- Addresses an issue with a black screen and crash on start
- Addresses an issue with incorrect number of Pro labels for Collectible skins
- Addresses an issue with Steam overlay
- Addresses an issue with mouse pointer
- Addresses an issue with PB 3.14 achievement