A classic, but...
A couple of qualms.
Firstly, yes, it's snake, and it's functional, I'll admit, but when did Snake start needing levels? The issue was always that it got more difficult as the snake got longer, and that was it, but it's an original twist to have the levels, as well as the obstacles, so that's cool.
On the issue of obstacles, however, there is somewhat of a glitch where in the spike traps can spawn OFF of the actual playing area. You may want to look in to that.
And lastly, the music seemed somewhat unnecessary. It was very "intense" considering the game, perhaps a more trance-ish lowkey beat WITHOUT singing/shouting would be more appropriate. That's personal preference, however.
Anyway, it's good to see that it works and all, a few minor issues, as said, but all around, good job. Make a more original game in the future and I'm sure you can do very well.