I'm not sure how to remove one object instead of all of them, because I'm using the method getWorld().removeObjects(getObjects(Block.class)); Any Ideas?
getWorld().removeObject(object);
getWorld().removeObject(object);
getWorld().removeObject(getWorld.getObjects(Block.class).get(0));
List l = getWorld().getObjects(Block.class);
if (! l.isEmpty()) {
getWorld().removeObject(l.get(0));
}