The lines of code that appear during the brain simulation in the introduction are for a Java program that multiplies 8 and -3 by 2 and has nothing to do with the graphics.
The 'source code' for the robotic arm at the beginning of the episode is simply example function calls in Java that is shown scrolling and then mirrored.
When the camera pans the sheet before Grey and Edwards perform the necropsy, you see the face of the sheep and can clearly tell it is a stuffed animal.
Every episode is named after a song, the band R.E.M sings man on the moon.