Classic Arcade Games: Defender

The player flies a small spaceship above a long, mountainous landscape (in all versions, except the Atari 2600 edition due to memory limitations; in that case, the landscape consisted of a city represented by buildings). The land is inhabited by a small number of humanoids. The landscape wraps around, so flying constantly in one direction will eventually bring the player back to their starting point. The player’s ship can fly through the landscape without being harmed by it.