Sure! Here's an example of a simple captcha game implemented as a single HTML file using JavaScript:
In this example, the captcha image is represented by an `img` tag with the source `"emozi_himawari.png"`. You can replace this with your own captcha image or use pictograms if you prefer. The expected answer for the captcha is set to `'ABCD'`, but you can change it to any desired value.
When the user clicks the "Submit" button, the game checks if their provided answer matches the expected answer. If it does, a success message is displayed in the `resultDiv`. Otherwise, an incorrect answer message is displayed.
Please note that for a functional captcha, you would typically use more complex algorithms or external verification services. However, this example provides a basic starting point for a simple captcha game.