Ultraman Ace: S1 E23 - A Game Changer! Here Comes Zoffy Ultraman Ace
A peculiar elderly man is seen brainwashing children by performing a strange song-dance. This is all part of a plan devised by the Yapool to bring children to an alternate dimension and end humanity. Hokuto jumps into the alternate dimension on his own. The final battle with the Yapool begins!