In Mice Arena, developed by Mixed Reality Labs, you and your hamster share the same virtual space, only the tables have somewhat turned. As your actual hamster chases a piece of bait in the real world, in the virtual world you are the one being chased by a giant hamster.
By making the character in the game run in terror, the human is actually controlling the crane that carries the piece of food the hamster is chasing. At the same time, the movements of the hamster are replicated by its oversized man-eating version inside the video game thanks to a series of sensors and cameras built into its tank.
But this isn't just for hamsters: Other possible Metazoa Ludens games in development include Jellyfish Trone (a Tron-like game where a real jellyfish is the snake that cuts you off) and Chicken Pacman (in which the chicken is represented by a ghost chasing you through a maze).
So to summarize, it's a way to play with your cuddly pet without actually touching it (you can even play over the Internet), and it trains your pet to successfully chase you down and eat you (since it's learning all of your real-life evasive maneuvers and how to defeat them).
"Animal is prone to shit-talking, even though he's barely ahead if you look at it hourly."