Everyone loves murdering with something they've made themselves. While Disgaea Dimension 2 doesn't quite offer that experience, you can at least have the chance at naming a few weapons.
Six weapons, one of each conventional non-monster-type weapon, are up to be named: a sword, axe, bow, staff, spear, and gun. There are even pictures of each, in the gallery below!
The event is on the site for Disgaea Dimension 2, which means it's all in Japanese. Oh, you don't know Japanese? Man, don't even worry, you know I've always got your back. When you go to the main page, click on Special. Along the left side under Contents, there is a link with "NEW!" beside it. Click on that and it'll take you to the page where you can see all the weapons.
The first box is for your name (which, they assure, can be a pseudonym) and then the weapon name boxes. The order is Sword, Spear, Bow, Gun, Ax, and Staff.
The big text box is for, in 200 characters, a message to Disgaea D2, so... you know, whatever.
They're not super picky, as the pseudonym is the only required one, so you can name whichever weapons you want and ignore the ones you don't care about. I don't necessarily have any suggestions, but I will definitely be offended if none are named after me.
This contest runs until November 30th, and I think the winners are going to be announced on December 14th. Nippon Ichi will be releasing Disgaea D2 itself to Japan on March 20, 2013, where we in the West may or may not see it. They brought over Disgaea Infinite and the Prinny games, though, so it's probably a pretty safe bet.
Check out the weapons below!