Yes but you need to program it in Construct2. It is not too easy to do it. I think this other game will fit better your needs https://codecanyon.net/item/memory-game-html5-educational-game/13375642

Hi,

You need to open the game in Construct2, click on the image and then change the Opacity on the left sidebar project settings.

Here it is » http://i.imgur.com/qxvnMAj.png

Yes. You can easily change the images using Construct2. Since there are less than 100 events, you can use the free version. In this game you will need 10 different images.

You are welcome. Let me know if you need help