oh also, this weird save has a tutorial that you'll definitely find useful in the future. id:2930374
all I can really say is try to make your bombs symmetrical and detailed, and you'll get a more regular explosion. also try to use more... reactive materials, like sing with life 0 and tmp2 99999999
you used wood. in a nuclear bomb. however, you also used hydrogen, which is a step up from previous saves.
subject has discovered hydrogen fusion