Making random images visible

I'm making a simple game, where images are set to non-visible initially and after a few seconds should become visible. They should stay visible until being pressed, though once they're clicked and become invisible again, after a few seconds, they become visible. How do I make this?

That sounds like the Whack A Mole game.

Have you looked for a tutorial like that?

https://appinventor.mit.edu/explore/ai2/molemash

Thanks! This helped a lot :slight_smile: