Song Summoner - The Unsung Heroes - Platform: iPhone Unlockables - Bonus troop types: -------------------------------- Complete all previous Rehearsal Room modes, then complete Ultra mode in the Rehearsal Room as the indicated character as an enemy to unlock the corresponding bonus troop type. Iron Man Archer : Archer as the enemy. Iron Man Knight : Knight as the enemy. Iron Man Mage : Mage as the enemy. Iron Man Monk : Monk as the enemy. Iron Man Soldier : Soldier as the enemy.