Korean gamer Genesis loses herself in the intense, rhythm-based gameplay of O2Jam, her fingers dancing frantically across the keyboard. The screen pulses with neon lights and thumping beats as she plays the challenging 'Joker' song at level 140, her fingers moving in a blur of speed and precision. The game's 'Crazy Density' mode pushes her to her limits, but Genesis is up for the challenge, her face a picture of intense concentration and pleasure.