Load random images every time the button is pressed - Arduino

Hey guys,

I need to use a button through an Arduino to be able to load random images on screen every time this button is pressed.
I have a background image and want to be able first time I press the button to see a bullet trace appearing on top of this image in a random place, then this trace stays and the secong time I press the same button, another trace appear .... and so on until the background image is all covered with bullet traces.

Can anyone help me with the code or how to do that?

Generalities are not helpful. Posters looking to get some project going are pressed for specifics such as: type of screen/resolution etc.; which Arduino you're using; where the images are stored; button type; poster's experience/knowledge level and so on.

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