First of all, I think the game really fits the theme in a creative way, I like the idea of playing snake but having to eat your tail.
I also have some feedback though for you to improve. First of all, it was not clear to me why some floor tiles seem to be above me and some below, and what things are obstacles and which are not. Second, if you have to tell people to turn down their sound when playing this game, it must mean you are aware the sound is quite present. Maybe you could have instead made the sound less in your face or less loud.
Don't take it the wrong way though, I definitely think you got a really interesting game right here that could be expanded upon to create a really fun arcade game! :)