Unfortunately, only a few beers out of their extensive range are available in New Zealand, but boy are these ones good!
Wychwood Hobgoblin 5.2% ABV
When this was first brewed in 1988, the brewery was called Glenny Brewery. But Hobgoblin was so popular they changed their name to Wychwood and started brewing character-themed beer. And it's not hard to see why this built up such a following.
Wychwood Black Wych Stout 5% ABV
As a dark-beer fan, I think I preferred this to the Hobgoblin, but only just.