Safe Zone

Aliens are attacking Chicago. One button: jump (tap again in mid-air to double jump). Run from your Wicker Park apartment across the Blue Line tracks, through the burning Loop and flooded Lower Wacker, up Lake Shore Drive, through Lincoln Park, Loyola's campus and beach, Evanston and suburban Lake Forest to the military Safe Zone at the naval base.

Jump alien lasers and stomp the gunners, ride spring pads onto rooftops, and watch the steam vents: in every set of three, either the outer two or the middle one erupts, and a vent about to blow puffs a warning first. Nine levels, checkpoints, one hit and you're down.

Play in 18 languages: tap the globe button on the title screen or in-game.

Tap anywhere (or Space / click) to jump. Tap again in mid-air to double jump. Land on aliens to stomp them. Esc or the pause button to pause.