Before it can meltdown, I push the SCRAM button, which drops all of the control rods into the reactor at once, stopping the meltdown.
The next user is shot with a bullet made of strange matter.
I was there 30 million years ago, when it was not nearly as tall as it is now.
I expose the next user to a chemical that almost instantly dissolves organic matter.
I am a UT-3345 based lifeform, (Otherwise known as Razorium, which I was transformed into earlier in the thread) so I am unharmed. I absorb the chemical energy and vaporize you.
The next user is the creeper in my avatar. (Diamond sword in head if you can't see)