Hey MegamanTai2053,
Windows 10 PB2 Launcher1. Click 'Download Latest Version' on the launcher.
PB2 VBS Launcher (Win 7, Win XP)1. Double click 'Update Game Version.vbs'
2. A terminal will pop up. Don't click anything on the terminal. It will automatically update the game for you. Once it's done, it will automatically disappear. This may take up to 5 minutes, so be patient.
Flash Player to open PB2 .swf file (MacOs)1. Delete the current PB2 .swf file you have
2. Download a new .swf file at
https://www.plazmaburst2.com/pb2/pb2_re34.swfPB2 linux launcher1. Click 'Download Latest Version' on the launcher.
Best regards,
Nyove