What more can you say, a game that offers everything in the real world.
In GTA 4 you can now take cover like gears of war, and shoot behind cars and walls making it more enjoyable. The main missions are more insane than ever, including the very memorable Bank heist ala Heat, a drug raid by a snitch, job interview, and a setup sting by the FBI. You are now doing more missions with new characters and the fire fights are more intense. The characters you meet along the way to do missions are very likable, with different personalities, making the game feel real. Liberty City is also the biggest we'd ever seen, with people everywhere in different looking variety's. You can also take the subway or hail a Taxi to quick travel or cruise.
What separate this game from every other game, is that in addition to your real mission, is side things you can do to kill time. You can eat at variety of restaurant, including taking your date their. You can surf the web, and send e-mail. The cell phone is probably the coolest thing, since you can call any of your buddy's to go do things like drink and play pool, in the addition, you can call 9-11 in a mission and cops will show up to assist in a shoot out. The most enjoyable part is frequenting to the comedy club, where Kat Williams comic is great, with different stand up version each time you visit. Watching Liberty City TV itself very humorous, especially the republican cartoon channel. The radio station is also outstanding this time around with more variety than ever!
The only gripe I have about this game is there's too much things to do and way too many missions. Which isn't a bad thing, because that's equivalent to you have more than enough food to eat in a fancy restaurant that you have to take some home. This is the only game that I will rate 10 because there's no glitch, and aren't any unnecessary annoying missions that you have to do. This is the perfect game.