The cartoon style scenery goes great with the cel-shaded models and allows the player to become immersed in the Runaway world. The opening cinematic-style sequence is a wonderful example of how much effort and work was put into making this game. As you fly around a bustling New York City, some high-powered music plays and concept art of scenes from the game is displayed.
One of the first things to impress me in this game was the fact that Brian, the main character, didn't give generic 'you can't do that' type statements when I tried out something outrageous just to see if it would work (well, okay he didn't say it as much as other games in the genre). His statements were mostly tailored to the object or situation, which helped stave off the repetitiveness a lot.
The music in Runaway is just as impressive, always staying low key and in the background until a major plot moment happens.