Thankfully you were still behind me, and decided to stop before you killed us both.

After gaining power by killing Michael238 and eating his brains, I attack the next user with my zombie embrace.

I am an extremely massive star. I collapse into a black hole, while producing a gamma ray burst in the process. I live the rest of my life as a black hole.

The next user was trapped on a planet and vaporized by the gamma ray burst I created.

thankfully the gamma ray bounces due to the planet atmosphere and go to kill you

next user is trapped into hitman absolution and is the target of agent 47, but everytime angent 47 fails he respawn the level and you lose every memory of the previous games.

I take my sledgehammer and break a hole into the fourth wall, from which I escape.

The next person has to wear a slowly shrinking scarf. Filled with nitroglycerin. Tied in a really tough knot.

i simply take scissors and cut the scarf.

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The below person is betwen a rock and a hard place. Or should i say, between the ground and a 40 ton boulder on top of them

I am a zombie.

Next user is getting hit by a planet.

I am a singularity. I eat the planet, yum.

The next user gets trapped in my gravitational influence.

I am the supermassive black hole at the center of the galaxy. I simply add your mass to mine, making me slightly larger and more massive.

The next user is a small asteroid that has crossed my event horizon.