I would want to be able to stop time and join the NFL. While in the middle of a tackle, I would freeze time, go back a couple feet, and tackle him again. In the middle of the frozen tackle, I would unfreeze time, and repeat the process. Eventually, I would repeat for the last time in history, and I would have tackled him several miles, and I would age while doing it, so my hair is just flying out of my face. The world would talk about the tackle that changed history.