Grand Theft Auto 2 was the first Grand Theft Auto game with six wanted levels, which, with only minimal changes, appeared in all 3D Universe games and Grand Theft Auto IV. In Grand Theft Auto 1, there was only a minor difference between the first and fourth (the highest) wanted levels. The overhauled six-star system would prove to provide much greater 'spectrum' of threat, allowing the player to easily escape when only one police "head" was present, and presenting them with an almost unsurvivable challenge at level six.