I happen to be the Earth, meaning the collision makes a new moon.
The next user was on the side of Mars facing Earth at the moment of collision.
I am made of an antimatter version of strange matter, do to which I simply absorb your mass by converting you into strange antimatter.
I touch the next user, who is made of regular matter.
I eject from the space shuttle, and land on the moon.
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IThe next player has the sun blowing up on them.