I think, yes, roms are Game&Watch. Because some of them contains Nintendo copyright signs. And game process is absolutely indentical. But 2 games ("Slalom" and "Explorers of space") are from soviet developers, because they haven't Nintendo analogs. But they use the same cpu.
I didn't compress or scramble exe. My windows10 downloads it normally... I will send the app to hap email. So, hap, please, check it for viruses, and upload to your site, and repost a link. Thanks!