Its a cool game. Don't know how to complete this game in single player but my kid and I just completed the game in coop on the penguin setting. Now we'll have to ramp up to the next difficulty.
FRIENDSHIP: A smile. A hug. A touch. A tender thought. Friends are for holding your hand, for sharing your laughter and for wiping away your tears. We all need friends. Even when we're trying to take over the universe. Only then they're just pond-life, to be used for their military knowledge and diplomatic skills, then spat out and urinated on from a great height. Proving their worth as mere stepping stones on the road to your goal as the ultimate leader. That's what friends are for.