Attack of the 50 ft president is the final mission in destroy all humans! It involves crypto destroying roboprez and eliminating silhouette.
The mission starts with a talk with sillouette about submission of the earth. The conversation turns into an argument when sillouhette mentions crypto 136 and after revealing that "He" is actually a "she", she reveals Robo-Prez (A 50 foot tall robot with huffmans brain commanding it). And crypto gets in his saucer. As the robot runs around the city it eventually blows up and orthopox starts a conversation about killing sillouette for unleashing roboprez. Shillouette ended the conversation after she interrupted and challenged crypto. Crypto then lands his saucer, takes out shillouette and the mission ends with majestic apparently been defeated with their leader.