An arcade/puzzle videogame built around Twilight and her “blink” (teleport) ability.
You aim the direction you want her to teleport, and the distance of her teleport is controlled by holding down the right mouse button. Like a bowstring, the longer you hold down her teleport button the further she goes. Except in special circumstances, she will need physical line-of-sight for her destination, which means she can teleport through bars and glass but will need to use mirrors, scrying, cameras, etc. to jump to other locations.