Sure! Here's a simple implementation of a 3D ASCII cube spinning on the y-axis using JavaScript:
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| 111 |
| 111 |
| 111 |
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To play the finished game, simply save the above code in a single HTML file, open it in a web browser (preferably on a smartphone), and the cube will start spinning automatically. You can customize the appearance of the cube by modifying the ASCII art or replacing it with your desired pictograms.