The Snake has exactly the same graphics and the dying sound was also used when going through the holes. Even if you made it yourself, it's straight up copied, not even modified.
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The sound effects are imo not at all similar but in any case I generated mine through a tool called sfxr. And about the snake, I see it as a compliment if you think that they look the same, I spent a lot of time to try and get them to look alike. The goal was for the game to look like a google game :)