It went out with a BANG....................TWO OF THEM.................
Heh...
After 45 Japanese cities had been firebombed, and the first nuke didn't convinced them, the second one did most of the job. One wasn't enough.
The night the surrender (prerecorded by Hirohito) was supposed to be broadcast to all Japanese forces, a group of young fanatic officers tried to arrest the Emperor and stop the records (literally the only way to reach all Japanese forces was to send out records to be broadcast using all available means to all theaters and ships) from being sent.
A fortuitous overflight of US planes caused a defensive power blackout, the young fanatics got lost in the darkness of the palace, and failed. So they all did the harakiri.
But droppin' those nuclear bombs was completely unnecessary, and an invasion of the home islands was preferable. /sarc