Unlock Switch Hero Option: Successfully complete ALL story mode missions to unlock the 'Switch Hero' option at the 'Pause' menu. Unlock Venom Races: Successfully complete ALL Story mode missions. Unlock Medium Combat Tour Difficulty: Successfully complete 8 easy Combat Tours after 'Hell of a Mess' (Chapter 4). Unlock Medium City Event Difficulty: Successfully complete 'Inexpugnable' (Chapter 6) and 10 City events. Unlock Hard City Event Difficulty: Successfully complete 'Class Trip' (Chapter 8) and 20 City events. Unlock Hard Combat Tour Difficulty: Successfully complete 12 Medium difficulty Combat Tours. Unlock Insane Combat Tour Difficulty: Successfully complete ALL Hard difficulty Combat Tours.
