You die because the rock gets absorbed

The rock gets absorbed by the antimatter body.

We throw some antimatter to the next user(Antimatter destroys you)

You die AGAIN because the rock gets absorbed

The rock gets absorbed by the antimatter body.

Anti-Superman flies away! YAY

We throw some antimatter to the next user(Antimatter destroys you)
NO THROWING ROCKS WONT HELP

There was no attack.

The next user dies and isn`t a cat

One second before death, I turn myself into a black hole, which stops time at its center due to its gravity.

 

The next user is vaporized when they collide with my inner event horizon.

i'm vaporized. i float away and condenses back to me.

The next user is attacked by the expendables,the justice league and the avengers together.

Thankfully although i have made a powerful death lazer they realise I haven't committed a crime yet, and have only used it for personal, metal cutting uses.

 

I fire my death ray at the next user. It can kill up to 9 cats.

I am still a black hole from earlier, so I simply absorb the beam and send it to another universe.

 

The next user is in another universe, when Oats's death ray beam comes out of a white hole and burns them.

There is a huge vulcanite shield in front of me (Vulcanite is stronger than diamond)

 

The next user has been poisoned by radioactive vulcanite.