Jax is a mischievous (occasionally flat-out bloodthirsty), laid-back, calm, sassy, impulsive, egotistical, and brazenly condescending individual, and rarely shows any empathy or remorse for those around him. He is indifferent to his imprisonment within the Digital Circus, an attitude that extends to his interactions with others. 
He was sent into the Amazing Digital Circus by a VR headset, and now is stuck for eternity, damned to spend eternity going in wacky digital adventures.