This is a digitised version of the well-known word search challenge.
In this example there are 10 words to search for. Clues can be provided by text, images or video.
This example requires the user to type the answer into the field provided (not case specific). It is possible to set it up so that the user clicks on letter squares for the answer but this would take a great deal more work to do … so typing responses is best.
At the end the user is provided an opportunity to check responses.
If you wanted this to be scored/timed that could be achieved also.