Silent Hill 2: Restless Dreams is an enhanced version of the game, first released on XBox and later ported back to PS2 and PC. Most of the gameplay consists of exploring the city, finding keys and other items, and solving puzzles. There is less emphasis on destroying enemies. The difficulty levels of opponents and puzzles are independent of each other and are determined separately before the start of the game. The project features four difficulty modes for each of the in-game systems: “Beginner”, “Easy”, “Normal” and “Heavy” — for the combat system; “Easy”, “Normal”, “Hard” and “Extra Hard” — for riddles