It took a while to get right but I used:
* I have a PAL Wii
* Wiikey 2
* 3.4E firmware on the Wii
* Swapped to 50Hertz in the Wii menu
* Twilight hacked, installed Homebrew Channel.
* Loaded the game with Gecko OS, no extra options, just loaded immediately.
Green screen appears briefly and then...