Diebuster, known in Japan as Aim for the Top 2!(トップをねらえ 2!Toppu o Nerae Tsū!) is a six episode anime Original Video Animation (OVA) series created by Gainax in 2004. The first episode was aired on October 3, 2004, while the final episode was released on August 14, 2005. A movie, officially titled Aim for the Top! & Aim for the Top 2! The Gattai Movie!!(トップをねらえ!&トップをねらえ2! 合体劇場版!!Toppu wo Nerae! & Toppu wo Nerae 2! Gattai Gekijōban!!) retells and recaps the end of the first Gunbuster OVA and the finale of Diebuster. It was scheduled to air on October 1, 2006 at the Tokyo Anime Center's 3D Akiba theatre.