Having watched the video last time it was submitted, I doubt the rat has any concept of the game's existence at all, or that its actions are doing anything to

Having watched the video last time it was submitted, I doubt the rat has any concept of the game's existence at all, or that its actions are doing anything to influence the mass of flashing colours on the screen in front of it. If you watch it, it doesn't even once look at the screen. I'm sure it's just learned that running on the ball in certain directions produces food. As a headline, "Scientist teaches rat to play Doom" is taking dumbing down to new depths.