Circumnavigate play area

Circumnavigate play area is a gameplay feature where the game world boundaries let the player instantly loop around them. It allows the player to cross through one boundary and appear exactly on the opposite side instantly. This feature can be possible with square, rectangle, cube or cuboid shaped game worlds where the sides are parallel to each other and form a 90 degree angle at intersections.
This feature should not be confused with teleportation (as seen on games like Portal).
The best example of this feature is seen in Snake II where the boundary walls allow the snake to loop around and appear exactly on the other side.
 
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