Hard Mode - Finish an entire level to unlock this mode for it

Hero Mode - Finish the game and this mode will be unlocked

Master Control - This will be unlocked after finishing the game giving you the ability to switch from Alien Form to Alien Form freely without having to turn back into Ben.

Play as Albedo - Defeat Albedo in Hero Mode

Play as a Vulpimancer - Defeat Darkstar in Hero Mode

Play as Mr. Smoothy - Defeat Mr. Smoothy in Hero Mode

**Credit to: https://www.ign.com/faqs/2011/ben-10-alien-force-vilgax-attacks-walkthrough-1151037#Option21