Hello, I downloaded here and tested it again, and the game opened normally.
Please make sure that both files, part1 and part2, are in the same folder, and that you have the program 'WinRar' on your computer (or the app on Android).
Right-click on the part1 file and choose the 'extract here' option. WinRar will automatically extract both files into a folder, which, after extraction, will be around 1.49 GB in size (if it’s not this size, you’re doing something wrong).