Hi, cowboys.
I'm working on the new mode these day and it would soon be able to play.
But I also found some bugs there which should be fixed as soon as possible, so before the next upcoming content, I upload this version.
The camera jitters glitch has been fixed which is very annoying sometimes.
Also, I added the anti-cheat system to prevent hacker change the steam-leaderboard.
Some minor bugs are also fixed.
Beside new mode, some feature will also be added in the next version such as custom key binding. Thanks for your playing and patience.
Please feel free to contact me if you have any questions or suggestions.