Satan Beetle is a kaiju from the tokusatsu series Ultraman Leo. It appears as one of the monsters encountered by Ultraman Leo and the MAC defense team, serving as a dangerous adversary in the show’s monster-of-the-week format. The character is portrayed as a powerful beetle-themed creature with a menacing presence, emphasizing the series’ darker and more intense tone. Satan Beetle’s role is primarily to challenge the hero in battle and contribute to the escalating threat posed by the series’ many kaiju enemies.