NeoGAF's duckroll suspects that the game in question is Sting's Dokapon Journey, which just happens to be a multiplayer RPG-style game that includes name-changing options. It could also be the Wii Dokapon Kingdom game. Our guess? Both.
We'd like to apologize for hiding the full apology card after the post break, and then compelling you to click. It was either that or putting a really tall image on the front page and apologizing for that.
Gallery: Dokapon Journey!