Tips for the hard badge: First go for the uzi and upgrade that all the way. Than, go for the gatling gun and upgrade that. Don't buy health and amo at the end of a level until you have the gatling gun fully upgraded. When you die (you will die) hit continue and your health will be fully restored and you'll receive a lot of extra amo. The general strategy is to jump to one side of the screen fight until you're surrounded and jump to the other side of the screen. To kill claive move the penguin to one side of the screen until claive is barely visible. This insures you won't get hit hard while dealing heavy damage. + If this helped