If block doesn't work

I have this code for app "Get The Gold" But it doesn't work.
can anyone explain why it's not working?

use 'do it' on all imageSprite.visible, to make sure they are all false.

Is this blocks connecting to some event or procedure? is there any error mark on bottom left of you work space?

Try like this:


Hello Hosna, welcome to the community :sunglasses:

Here is a quick way to see if all Sprites are invisible:

ImageSpritesInvisible.aia (2.9 KB)