Hoopa Confined is a small Pokémon, who wears yellow rings around its arms and belly. Its eyes are green and its body is painted pink and violet. When transformed into Hoopa Unbound, it is a large genie-like being. It has triangular red eyes, a long tail with a spike at the end, six arms and a ring in its chest. It has big spikey hair and big horns with rings held tightly around them.
As Hoopa Confined, when given the Prison Bottle, it grows largely into Hoopa Unbound for three days, or until put in the PC. He also has a signature move named Hyperspace Hole. In order to get the prison bottle you must go in the poke mart with Hoopa in your party and talk to a certain man. Only hackers have found this event.