Instructions
Throw your character onto high places where they have a chance to fall down; the further he falls, the more points you get. Ideally, start by throwing your character onto a high place in such a way that he'll get knocked off by something else. Characters can easily travel downward through a level, collecting points as they fall, but it's nearly impossible for a character to travel upward.
Throw your character into busy areas, such as heavily trafficked streets. If your character does end up in the street, he'll be hit by a car that in turn may be hit by other cars and so on, each time causing additional damage, which gives you more points.
Throw or bounce your character onto roller coaster tracks, train tracks or subway tracks. After getting your character on the tracks, some vehicle is guaranteed to come along and smash into him, giving you a lot of points. The subway is particularly good for this, as your character will be dragged beneath the train for a long period of time.
Hit the yellow explosive boxes. These give you bonus points and explode, tossing your character deeper into the level. Remember, the level isn't over until your momentum stops moving you, so the more things you can hit that propel you, the better.