Various here. Not that much actual guro stuff (atm) but if there were no consequences I would take my life without hesitation. How doesn't matter that much. asphyxiation would be great, but I would shoot myself somewhere that would cause me to die slowly or stab myself to death too. Also, just from riding those freefalling rollercoasters and amusement park rides, I would love the sensation of hurtling towards the ground at breakneck speed and have it abruptly stop.

Alternatively, I have a part of me that would just like to watch the world burn; I would be a god with the power to crush nameless masses like insects under my foot. I imagine sitting on a gorgeous beach with a cold drink in my hand watching a brilliant orange nuclear fireball building into a mushroom cloud over some inconsequential city on the horizon. I would harness antimatter, create gamma ray bursts, anything that I could to destroy anything I wanted. I would have a weapon for my personal use, a sort of fluidic collection of billions of tiny, independent but strongly interacting nodes each capable of performing computations and processing information at a quantum level. They would be able to act as photodetectors, take data from the world around them, and basically each act as an individual sensory system. The whole thing together would be powered by a fantastically efficient combustion core, probably using antimatter or something, that would be able to safely harness and utilize close to or fully 100% of the energy released by the reactions. With all the nodes functioning in unison, the machine would be the most powerful computing unit ever seen by the world, and it could be tied directly into my nervous system by sensitively detecting and interacting with the electrical signals. By interfacing with it I would have a perception of the world far beyond any mere human, and command the machine to do my bidding. The collection of nodes would be able contract and expand magnetically, and essentially act as an extremely powerful external muscle, which i would be able to wear as an exosuit. It would also be able to manipulate kinetic energy itself in a way that would allow me to instantly accelerate or decelerate and give me superhuman might. The nodes would be able to diffuse oxygen from any environment that had it, and maintain stable internal conditions regardless of what was going on the outside. I would be invincible, a god, peerless.

wow, I'm not usually one to ramble on like this. I'll be surprised if anyone actually reads all of that.