Scratch

http://scratch.mit.edu/projects/colorfusion/1151950

AKA: Smack the skyscraper with a giant ball on a chain!

Quite fun to play with, you need to download and its best played in presentation mode!
The pieces of building actually change the way they explode depending on how you hit it, for example hit it with momentum to the left and they fly to the left, hit it with momentum going right and they go right!

Thanks to a friend for making a project like this at first, that gave me the idea to make this one. His was quite good but you could only hit it by pressing a key and it only really had one outcome (The building fell)
EVERYTHING in this project is mine but I used some ideas from elsewhere, including thing string (It was actually easier to make than it first seemed)