At a New York event yesterday, Sony demonstrated install speeds - the time from the point the disc is inserted, install is initiated and play can begin - for retail versions of two PS4 launch games: Knack and Killzone: Shadow Fall

Knack, the action-adventure game from PS4 architect Mark Cerny, will take only tens of seconds before play can begin after priming the installation, Kotaku reports. Killzone: Shadow Fall will take a bit longer to reach play, Polygon reports, because there is an unskippable introduction movie and mandatory profile set-up. Guerrilla Games Managing Director Hermen Hulst told Polygon it takes under three minutes total to get into gameplay.

Sony outlined the launch limitations of its PS4 console last month. All retail PS4 games will have to install data to the console's 500GB hard drive, which can be manually swapped out should the need for more space arise. The PS4 won't let users store data on an external hard drive or memory stick.

This article was originally published on Joystiq.