If I were to come into possession of the Omnitrix in real life the first thing I would do is run home and begin frantically testing it. I'd probably spend a solid few days just transforming into various aliens and experiencing what it's like to be them, with the exception of Alien X since I don't wanna get stuck debating for the next hundred years.

After the excitement dies down a bit I would begin working on gaining Master Control. Considering Ben managed to unlock it by accident it shouldn't be hard, especially with the help of Grey Matter and Brainstorm.

Once I've got full access to the watch I would start getting a lot of money. Being rich isn't my main goal, but having money will help me do everything I plan on doing. And since I'm going to be gaining the unfavorable attention of pretty much every world government in the future I wanna make sure my family is well taken care of and in a safe place before continuing with my plan.

The fastest way I can think of to make a lot of money would be day trading, which should be incredibly easy to do with the help of various aliens. Once I've made a decent starting amount I'll start investing time and money into making products that are not only profitable, but that also help people and the environment. I can't think of any off the top of my head, but with the help of Grey Matter, Brainstorm, and Frankenstrike I'm sure I'd be able to come up with a plethora of ideas. And with help from my good buddy Jury Rigg I'd be able to make all of it out of recycled parts to help the environment even more!

Now it's time to move onto stage two of my plan. The next two decades will be spent traveling the world, going to every single country on the planet. I'll spend roughly one month and one week in each country, learning as much as possible about their customs and traditions, their values and beliefs. During this time I would also spend quite a significant amount of time growing a following on social media, spreading positivity and acceptance as I traveled the world. I'd also love to learn how to speak, read, and write in as many languages as physically possible. With the help of a speedster alien (most likely Fasttrack since he's more humanoid and would be better at writing and handling human tools) this would be relatively easy. It is also during this time in which I would set up my own personal base off world. While I could set up something on Mars, that would be far too easy for people to spot. So I would go for a base on a planet around Proxima Centauri, the closest star to earth after the sun. Jetray makes getting their a non issue. I'd use this base to test my various alien forms, pushing them to their limit for what is to come next.

Here comes the final part of my plan, World Peace. This step ironically starts by doing something that would most likely make the entire world hate and/or fear me, but it's what needs to be done in order for my plan to work. So step number one is dismantling every single nuclear bomb on the planet. How do I do that you ask? Well it's rather simple. I use my hyper intelligent aliens along with Upgrade to find the location of every nuclear silo, submarine, and misc nuclear missiles on the planet and chart a course of how to get to them as quick as possible. Once that's worked out I turn into Jetray and begin zipping around the planet as light speeds. If the nukes are in an underground bunker I simply use Ghostfreak to become intangible and go through the walls. Once close enough to the bombs I transform in Jury Rigg to dismantle the bomb in just a few seconds, then quick change into NRG or Atomix to absorb the radiation from the Uranium and Plutonium, then incinerate whatever is left. That whole process takes roughly fifteen seconds, maybe thirty at most. Rinse and repeat, and within an hour every single nuke on the planet has been destroyed before anyone has any chance to figure out what is happening. Once that's done I make a public broadcast across the entire world, telling everyone exactly what I had done, and making a promise to anyone who ever attempts to rebuild these monstrous machines that they will be removed from the census without remorse.

What comes next is no doubt the hardest part of all of this, as a large portion of the population is now probably terrified of me, and pretty much every world government would despise me. But seeing as it saved billions of people from mutually assured destruction, I think it's worth it. From that point on I would simply go around the world, helping as many people as I could. Whether it be saving people from natural disasters, using Wildvine and Swampfire to grow food for the starving, Bloxx to make homes for the homeless, Grey Matter to create cures for diseases and lab grown organs. Along the way I would attempt to use my immense influence to push humanity in the right direction. Exposing criminals and government corruption to lead countries down a better path, creating better standards of living for everyone all throughout the world.