Batman gains experience points (XP) by defeating enemies, solving Riddler challenges, and completing objectives. XP is used to unlock upgrades in four categories: Combat, Predator, Gadgets, and Health. Early game, prioritize Combat upgrades like 'Critical Combo Strikes' and 'Special Combo Boost' for increased damage and faster special move access. For Predator, 'Inverted Takedown' and 'Grapple Boost' are invaluable. Always invest in Health upgrades when available for increased survivability.
