True GTA game – sandbox gameplay, open-world environment, gritty crime narrative.
– M-rating
– Isometric camera angle
– Cel-shaded polygons w/ black borders
– good touch-screen implementation – “tasteful” minigames, streamlining interface
– UI based on a PDA – hub for email, contacts, map, music player, GPS, stat-tracking
– stats uploaded to Rockstar Social Club website via Wi-Fi
– finger-sized icons
– missions designed for shorter periods of play, arcade quality
– aiming with control pad, auto targeting with R button
– subtle autosteer
– if you fail a mission, you can jump back to the action sequence
– chain gun, flamethrower
– good portion of Liberty City is modeled in the game (different routes than console games)
– no probems with load times, draw-in or frame rate
– lots of pedestrians, cars, etc on screen
– Wanted system – objective is to disable police cars any way possible
– real-time weather effects, 24-hour day/night cycle
– lots of radio stations to listen to (more instrumentals than vocals)
– 800,000 lines of hand-optimized source code (hey, the people like the info, right?)
– no details yet on multiplayer/Wi-Fi features

Link