Instructions
Press "Square" in front of any NPC in the Calm Lands to present them with a campaign pitch. Choose from one of the five pitches. Depending on the level of enthusiasm in the NPC's response, you will gain a number of points between one and five. Speak to a representative of your chosen company to find out how many points you have accumulated so far.
Play the mini-game attractions set up by the company you have chosen to assist. It helps to have a lot of credits if you intend to gain points through this method, as a small fraction of the credits you lose to these games is converted to points toward your publicity level.
Progress through the main chapters of the regular game. Your publicity level for your chosen company can only be one level higher than the number of your current chapter. If you are on Chapter 2, your publicity level cannot be higher than three. If you reach publicity level five and then Chapter 5 of the main game, you'll receive an "Episode Complete" for the Calm Lands region and unite the two companies.