Arwon (アーウォン Āruwon?) is a kaiju that appeared in Ultraman Dyna: The Return of Hanejiro. When combining with the meteor Power Lock (パワーロック Pawarokku?) by its master Casa Madara, it can transform into the monstrous Wanzetto (ワンゼット Wanzetto?). Arwon's name is sometimes misspelled as Ahwon. * Subtitle: Absorption Monster (吸収怪獣 Kyūshū kaijū?) * Wanzetto Subtitle: Coalescence Invasion Weapon-beast (合体侵略兵器獣 Gattai shinryaku heiki-jū?)