I do not condone this sort of activity, I only place it here for educational purposes.
There are many histories of media and hacked media. Here is a resource link to the Experimental Television Center’s “Histories” page.
…and the homepage for Electronic Arts Intermix:
Enter the vortex at your peril…
One of my all time favorite hacks: Super Mario Clouds!
And for those of you, like me, who want to full-screen: