Good game, man. I had so much fun playing that. This is "classic old games of genre" in your pure essence. Congrats!
Who knows? I remember the British tv-host and youtuber Tom Scott got one of his videos banned on youtube for "copyright infringement", because - get this - some Asian tv-company showed the same footage of him in one of their programmes, and YT thought they were the original copyright holders. Crazy! :D