This hacker changed the special gauge charge rate so that it builds up very fast.
http://www.twitch.tv/nwplayer123/v/8599515
Is this the first online hack on Wii U? One other well-known Mario Kart Wii/8 hacker claimed online multiplayer cheats were not possible yet because the exploit required using an old Wii U firmware version 5.3.2 (see description of
https://www.youtube.com/watch?v=JmyDODvsx4M ).
This worries me a lot because Nintendo's response to online cheaters in the past has been downright pathetic (cf. Mario Kart Wii's cheater-infested online mode).