After completing the main story, 'Nightmare Mode' is unlocked. This difficulty significantly increases enemy health and damage, providing a true test of your Portal Master skills and Skylander builds. It's an excellent way to re-experience the game with a fresh challenge and earn bragging rights. Additionally, each level has specific 'Heroic Challenges' that reward you with bonus gold and experience upon completion. These challenges often involve defeating a certain number of enemies, completing a level within a time limit, or finding all collectibles. Tackling these challenges is key to 100% completion.
