Anime power!!

[Lindy]

I'd take 20 episodes for even the tiniest story progression.

[Triple T]

I wanna go back in time, à la Chrono Trigger and Tsubasa Chronicles. ^_^

[T-MaN]

I want a Gundam! Wait, that is not an anime power...
I'd probably want to be able to make all those seals from Naruto. Also, flying with wings wouldn't be too bad. (Like in X/1999).

[Boosk]

I thought of another thing! I wana be able to jump really high and float in the air for ages!! and go "kkkeeeeaaaaaaaaaaaaaaaaaaarrrrr!"

Kagga

[Azure Chrysanthemum]

Skill with the katana at a level that is a combination of Hiko Seijuro, Himura Kenshin, and Hajime Saito.

[Zeldy]

2 plaits at the front of my hair that are the length of me.

[Ryth]

To make people grow giant boobies!

[Mitch]

I would have the power to move you

[ThroneofDravaris]

The power to tune the world!

[Pauten]

Kaworu from EVA's AT field.
Oh and Gendo Ikari's animal magatism.

[Devourment]

I would have massive boobies

I'd have bigger ones.