Create a duplicate image matching game

How do I...?
1

Could someone help me to create a duplicate image matching game with array? I follow the sample Pairs game but I don’t know how do a sample with only front images, not turning or rotate.

Thank you

2

Check this thread, and see if it helps.

3

Thank you. It is great and details. I’m doing a drag and drop images game like this. Hope I can use it.