Guardian, known as Ojizou-san (オジゾウサン Ojizou-san?) in Japan, is an obstacle type Battle Chip from the Mega Man Battle Network series. It freezes time and places the statue depicted in the Battle Chip in front of the NetNavi that used it. Whomever strikes the statue will be hit by its attack "Punisher" which deals 200 points worth of damage automatically. Its letter code is O and is considered a Mega Chip except in Mega Man Battle Network 2 and Mega Man Battle Network 6.