During the premiere , the theme park was open to the public and featured a Grudge 2 maze as part of its 2006 Halloween Haunt .
The Grudge 2 premiered at Knott 's Berry Farm in Buena Park , California on October 8 , 2006 .
During the premiere , the theme park was open to the public and featured a Grudge 2 maze as part of Grudge 2 's 2006 Halloween Haunt .
The Grudge 2 premiered at Knott 's Berry Farm in Buena Park , California on October 8 , 2006 .