Nice game with a lot of polish! I like how the snake and the music speed up when your score increases, it adds some nice tension. Your game looks good too, love the CRT shape. I think adding the option to toggle a scanlines effect could make it look even better!
Currently, I think there is no incentive to use the exit door instead of trying to collect more pellets because the game ends with your current score in both scenarios. Maybe exiting through the door could give you bonus points, or you could "store" collected pellets there and shrink back to your original size, but keep the speed and the accumulated score 🤔
It's fun, great work to all the team!