Cool puzzle game with unsettling atmosphere! :O
For me, it was a little too easy, because, in the end, all the levels have the same solution: Eat apples until your snake's length occupies an odd number of cells.
The last level had a new idea: some apples need to be eaten together. But this idea is not really explored, and the level remains open for different solutions.
But, after all, I can understand that for people who are not as much into puzzle games, even the snake movement can be puzzling!!!