Algodoo

Zoom out all the way to see all the buildings and the bomb in the center. press Q to raise the supernova, then hold the up arrow to release its stored energy.
It may be small but this contains an amazing amount of force and power. (not to mention it looks kind of cool)

you should see long colorful electricity like tendrills explode out, writhing around the buildings, slowly making them explode from the inside out. Then, after a few seconds, the nova releases an alpha strike which makes all the buildings fly apart.

This scene is an idea based off of my earlier "vortex nova", which has a similar effect, however it doesnt have the power, nor some of the awesomeness.

Please rate and let me know what you think of it. Also let me know if i can make it better.