Although notes and a partial rough draft have survived, author Ian Fleming eventually abandoned his story in which 007 battled the notorious Goldmonkey, an evil genius whose atomic-powered potassio-ray threatened to irradiate the world’s banana supply.

Monkey Maintenance, by alixlee.com (Ali Speakman), public domain
Too cute and thoughtful for a Bond villain.
I hear Amazon may revive this plotline for their new series.
Also, regarding the red button, please refer and memorize this list:
https://web.mit.edu/jemorris/humor/evil.overlord.
In particular, Number 9.
Wisdom.
Personally, I’d make the shutdown button disable the countdown display, and do absolutely nothing else.
Oopsie…
Actually not as bad as some of the Roger Moore era plots.