CANNOT PLAY SADLY.

@shirorai you could have given more details if you want help, or you can just visit this page maybe it will help https://ulmf.org/threads/frequently-asked-questions-and-problems-tech-questions-go-here.437/

files seem corrupted when using normal Winrar. any way i can decompress this without losing filenames?

nevermind, using 7zip with ntleas work very well.
(using winrar on the other hand, give corrupted filenames or duplicates.)

@Sinjid : You have to use ctrl + e an chose 932 (ANSI/OEM JIS) encoding to decompress the game without losing filenames :D