Decent, but done before.
I am unsure which errors you're aware of, so here are some sugestions:
1) Increase speed of snake
2) Sound.
3) Increase text size,for it is too small for the naked eye to read and the cursor to select.
4) Add some sort of reward for getting far in the game.
5) Add more colour. Few colours make this game visually boring, almost depressing.