The fusion has no effect on me because just before i am thrown into the chamber, I manage to shut down the machine.
I throw the next user into a pool of lightsabers, razorblades, sea urchins, sharks, cactuses, broken glass and radioactive materials.
The lightsabres and razorblades kill the seaurchins, sharks and cactuses and the become blunt and run out of battery and I eat the radioactive stuff (it tastes like bananas)
I drop a planet sized poop on the next user to suffocate him
I'm wearing an indestructable armor + helmet + gauntlets and boots = Perfect Defense!!, And I can fly so I escape away from the pool :)
The next user is teleported into whale's stomach. Starting to digest you.. And you're only a NORMAL human and you have only 1 item.. The majestic Flashlight!!!
Fortunately, that is easy, since I don't eat bacon anyway.
The next user is trapped in a box full of nitrogen triiodide. Any movement will cause it to explode, killing you.
I begin cooling the box, gradually powderizing the gaseous Nitrogen Triiodide around me. I then release Phlegmatizers into the Nitrogen, stabilizing the explosive enough for me to escape safely.
I inject pure thorium into the next user's bloodstream, gradually poisioning them via radiation decay, and killing them of radiation poisioning of excess of 500Sv. They are a Carbon-Based DNA-Based Non GM lifeform and have no shielding, magic, or other purging mechanisms. They also HAVE a bloodstream. (The thorium will store in the spinal cord, so you can't purge the chemical. You also have a spinal cord.)
Thorium has a 14 billion year half-life, which means that the radiation level is actually very low. As a result the thorium sits around and does nothing, until it is leached out of the body. (To indicate just how low of a radiation level there is, in order to reach one curie of activity, you would need roughly ten metric tons of pure thorium.)
The next user is trapped on the surface of a comet that is falling into the Sun.