[quote=@The World]
<Snipped quote by Nimda>

Whenever you're ready. We can either get you brand new eyes or upgrade your natural ones. And they'll look like this. *My eyes change several times to show four different things as I list them* There's [url=https://vignette.wikia.nocookie.net/naruto/images/5/56/Sharingan_Triple.svg/revision/latest/scale-to-width-down/200?cb=20091022225716]Sharingan,[/url] [url=https://vignette.wikia.nocookie.net/naruto/images/7/73/Byakugan.svg/revision/latest/scale-to-width-down/200?cb=20090331090108]Byakugan,[/url] [url=https://vignette.wikia.nocookie.net/naruto/images/d/d6/Tenseigan_Symbol.svg/revision/latest/scale-to-width-down/200?cb=20180208143426]Tenseigan,[/url] and the [url=https://vignette.wikia.nocookie.net/naruto/images/7/7e/Rinnegan.svg/revision/latest/scale-to-width-down/200?cb=20171226164549]Rinnegan.[/url] You could even get one in each eye to have two, but having multiple like me would be too much of a strain on you. The Sharingan also only shows up visibly when active, but the other three are always active and visible.
[/quote]

What are the differences and advantages of new eyes vs. altering my own? And would I ever be able to train myself up to have multiple?