The above screen shot shows an animated bar graph that is followed by a mouse that runs through a maze.

Then this guy comes on the screen and slides the screen away.

A scripted demo of a paint program plays back the actions of someone drawing this face.

Bouncing blocks, lines, and moving windows.

Keep in mind the Perq added hardware and special operations to accelerate manipulation of graphics on the screen. This was much faster than software directly manipulating the video memory, and in some ways made GUIs more practical

A demonstration of different fonts, sizes, and styles.  Oh, and a squirrel!