Developer Adam Bell has demonstrated an interesting hack to Apple’s new Picture in Picture feature on iOS 9 for iPads. Picture in Picture is used to view video playback or FaceTime video calls within other apps or from the home screen so users can work with other apps without interrupting playback.

While the feature is currently limited to Apple’s video apps and videos played through Safari, a public API for developers is available to allow other video apps like YouTube to add support for Picture in Picture on iOS 9.

Bell has managed to hack the Picture in Picture mode using the public API to allow any app showing any type of content to be minimized and displayed over other apps including the home screen.

In his video, a demo from the game Doom is seen playing through Picture in Picture mode over the home screen. Bell says the process doesn’t require jailbreaking or process injection.

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