Guardian

Guardian is a 2D futuristic themed side-scrolling beat 'em-up game that puts players in the shoes of a robot. You fight various strange aliens, robots and bosses on worlds ranging from a frozen wasteland to a desert and a forest.

The player has the ability to jump, dig and punch while automatically moving forward. While traversing the stages you can unlock more powerful punches (speed, fire and super punch). The game has a total of six stages and can be played solo or with a friend in alternating turns.