You can choose a power but first person to reply chooses a side effect.

Any power can be chosen

I can fly

U have prostate cancer

I can teleport anywhere I want.

I can stop the time and the world

I can.

Yes.

I can can.

I French can-can.

Side effect:
Voting for Obama.

super speed

@GloweyySquidd said in #7:
> super speed

Side effect :
Premature jaculation...

@Savage_Water said in #3:
> U have prostate cancer
Good side effects should be at least partially related to the superpower, since if the side effect was not related to the superpower, then the entire idea of choosing a superpower becomes arbitrary.

@GloweyySquidd said in #7:
> super speed
Great! Wonderful! Except for one minor detail.-skeletal overheating. You see, moving at that boisterous velocity, inevitably induces friction, and the accumulated heat pulverized every joint of your body due to insufficient lubrication on your first attempt. Your howls of agony could be heard for miles as you tumbled to a sudden stop. Big difference from the broad smile you had displayed just prior to the test run.