Some sort of Napalm grenade or something O.oDidnt really know what to add on top so for now the source of activation is you click the button.
I think firing the lower barrel of the vertical shotgun would result in some damage to the top one, because of the spread.
Argh! Not even the Black Pearl could outrun this beast, aye!
You should consider getting a new shotgun if yours are spreading that much...
WOWA TEXTURED CUBE
Anyway, it looks like the rocks are modeled individually, when they are actually just on a flat surface.