checkWorldBounds : boolean If this is set to true the Game Object checks if it is within the World bounds each frame. When it is no longer intersecting the world bounds it dispatches the onOutOfBounds event. If it was previously out of bounds but is now intersecting the world bounds again it dispatches the onEnterBounds event. It also optionally kills the Game Object if outOfBoundsKill is true. When checkWorldBounds is enabled it forces the Game Object to calculate its full bounds every fram

topLeft : Phaser.Point The location of the Rectangles top left corner as a Point object. Source code: geom/Rectangle.js (Line 700)