Spark also known as Spaak (Japanese: 炎, En) is one of the main characters of Jibaku-Kun (as known Bucky: The Incredible Kid or Bucky: Searching for World 0) series, a creation of Ami Shibata. He is the previous Great Child of Primas before Bucky and later as a Great Soldier of Primas.
Spaak is considered the most powerful Great Child of all Twelve Worlds. Spaak has twin swords as weapons, and has admirers all over the worlds 12. Spaak came from another planet, destroyed by Slash on his ship (The Needle Tower) along with her sister to the Twelve Worlds long time ago when he was very young. His sister is the Princess and her name was never revealed in the series.
During the past Spaak saved the Twelve Worlds of many monsters as was the case of Trios (The Third World) when he saved one from an attack by a Giant Taurus and inspiring Kai to be the Great Child of the world. Later he saved Pinky being killed by a curse that was destroying his family and also made her to be an inspiring Great Child.
Spaak met Bucky after he saves his friend from a Trouble Monster in Primas, and his courage and determination caught his attention, leading Spaak pass the position of GC of Primas for Bucky making himself as the Great Soldier of Primas. Spaak is later seen aiding Bucky and his group throughout the series until he reappears in Episode 22 where he saves Pinky from Slash. He uses the Prayer of Heaven at the end of the series to remove Slash from possessing his sister, going to own. Before Spaak is possessed by it he tells Bucky to finish Slash off. After defeating Slash, Spaak and his sister were gone the 12 worlds, taking the pointed tower to get back to their home planet.
- Prayer of Heaven
The Prayer of Heaven is the most powerful stroke used throughout the series. Is to pass from one person to another illness or curse. This ability was used only twice during the whole plot, one passing the curse of the Needle Tower, applied by Reo in the family of Silva. He sent the curse of Pinky to Silva. The second time he used was removing Slash of his sister and going for your body.
Dual Sword: Spaak uses two swords as a main weapon to attack his opponents in a close range. This is used throughout the series when he fights Hail to protect Silva and later Slash after his attempt to attack Pinky in Episode 22.
- In the Japanese version of the anime, he is voiced by Yasunori Matsumoto. But in the Filipino Dub, he is voiced by Erick Galvez.