(click preview image above to watch the video) Sebastian Schmieg lives, studies, and freelances in Berlin. Roy Block is an installation touching the fields of game-art, mixed reality, and tangible interface experiments. The game features a self-willed heroine who is trying to get from the very left to the very right of the screen without touching the bottom and dying. However there is nothing she can stand and jump on so she needs the player to help her. The player has two small blocks, in each hand one. Pressed on the screen they are being recognized by the game and the heroine can jump on them. To make the game even more challenging there are hazardous flower-like enemies who try to destroy the heroine when she comes too close. An integral part of the game – leaving aside the enemies we can call it the environment – is put into the player's hands and becomes the interface. This transformation leads to an almost seamless transition of physical and virtual challenge.