1. Improve visibility of total zombie bullet train
2. Improve visibility of dropped items
3. Add character screen lock mode
When the character screen lock mode is activated, the screen is fixed to the character.
- Activation method
3.1 Keyboard key : F1 > On/Off
3.2 Options window : Character screen lock mode > Checkbox On/Off
4. Improve screen size and character control
(When screen lock mode is deactivated: Holding the spacebar will make the screen follow the character)
5. Miscellaneous bug fixes