Zekkyou on 05 December 2014
It's a niche title with few votes that strongly appeals to said niche market. KH2.5 currently has 9.7 from 56 votes for the same reason: (http://www.metacritic.com/game/playstation-3/kingdom-hearts-hd-25-remix).
The higher the profile of a game, the more troll scores it tends to get. The WiiU's lack of popularity means it tends to fair the best of the 8th gen consoles (it's seen as somewhat irrelevant by many in the PS vs Xbox fanboy wars), but it still gets a fair number on its higher profile games. Likewise, the fans of a console tend to throw 10's at every exclusive they get.
TL;DR - Metacritic user score's mean bugger all.
