Remember the days of the old Nokia phones? In the simpler times we had 2 colours, Green and Darker Green, and with these colours formed a snake and a little square that you had to chase and eat making yourself bigger.
1. Open any YouTube video. Let us take this as an example.
2. When streaming starts. Hold left button of mouse + Left arrow on keyboard + Top arrow on keyboard.
3. Once the game starts you can change the direction from keyboard arrow.
4. Check out the above video of Snake game. Kindly try the video with dark background as it will be visible to you.
Please note: If it doesn’t work, try holding the left key AND the up key at the same time.