 The game features the "Skills for Kills" system as found in previous games, in which killing enemies with different tools and finding pickups hidden throughout the city award the player with orbs, which increase the player's core skills – agility, firearms, strength, explosives, and driving.Each time a skill levels up, the player unlocks an additional maneuver or item related to that skill, such as ground-pounding by leveling up strength, or double-jumping by leveling up agility.Agility Orbs, Rooftop Races, Driving Rings, and Road Races are also located throughout the city, all of which will increase the related skill upon collection or completion; Hidden Orbs can be found as well, and will increase all of the player's skills at once.