Great snake game and great music! Not many snake games have levels these days. Would you be interested in making a downloadable version for Windows?
Super old reply but I haven't been around itch.io in a long time. Thanks a lot, I'm glad you had fun with it!
And just saw this now. In case you'd still like to know: this was done with construct 2 which creates a html5 game. sadly I can't just create an executable windows file with this software (as far as I know. might have changed now. Construct 3 has been around for a while now which I haven't looked at)
You are welcome, you reminded me to play it again :~)
As for converting it to a Windows executable, it's easy enough with a specialized tool, just use this guide:
https://medium.com/@Raicuparta/getting-an-html5-game-on-steam-3-making-an-executable-e7bbf7706a50
...and why not put your game up for purchasing at some point since it's truly of decent quality :~)