Game designers are responsible for the overall gameplay and visual design. They must be creative and able to receive feedback to improve their designs. Artists create the visual elements like characters and environments. They require a portfolio demonstrating different styles. Audio engineers compose or find soundtracks, keeping in mind the interactive nature of games. They must work quickly to tight deadlines. An example contributor was Rich Vreeland, who composed FEZ's softer synth soundtrack over 14 months.