An Evil Robot has stolen your girlfriend, but you can release her. Tap on the left side of the screen to jump over the obstacles and tap on the right side to shoot your enemies. Watch your points, which reflect your current progress.
This is impossible, but your girlfriend was stolen by a huge robot again. You should bring her back, but in order to do that, you have to make it through the hordes of nasty minions. They all serve to the Evil Robot, but unlike him are easy to kill. Deal with them and jump over the gaps and obstacles on your way.