Sazeku-Ba!: Null Void

Sazeku-Ba!: Null Void is the first movie of the Sazeku-Ba! anime series. It took place during the Terror of Puki-Puki Saga in between episodes 6 and 7.

Summary
The movie features the villain, Basil Jr., who is on a vengeful quest to rid of King Neptune. In order for this to happen though, he had his minions, Spice, Mustard & Celary to go and kidnap him. He then takes King Neptune to an abandoned area far out. Tadashi and Sayuri are baffled that King Neptune skipped practice however, they soon figure out that he was kidnapped. They then track down his kidnappers and they eventually finds the Dark Hole Summit.

There, he plans to rid of King Neptune and take over as the new king of Sakabei Village. However, he is interrupted by Tadashi and Sayuri who eagerly defies him. He gets his minions to fight the two as he handles King Neptune. The two are even but Basil Jr. gains the edge when he gets King Neptune's guard down. Meanwhile, Tadashi and Sayuri struggles to fight the trio as they are much more faster and stronger than they are. With them outmatched, they are about to get hit again until the trio are stopped by Riku, who has come for revenge since the last time they met. When Riku fights and kills off Mustard, Celary goes to fight Sayuri and she is able to overwhelm him. Tadashi then distracts him and she kills him using her Demon Shuriken. Tadashi then struggles when facing off against Spice. However, he is able to block his last few attacks and kills him with a Flaming Blade Slice.

Afterwards, Tadashi asks Sayuri to get King Neptune and get him out of the Dark Hole Summit. Meanwhile, Tadashi and Riku temporarily teams up to take out Basil Jr. He fights them for a bit and gets beaten easily. He then mocks them and transforms into his Super Form. Everything about him is multiplied by 2. After a long lengthy battle, Riku and Tadashi still cannot claim victory over Basil Jr. However, Sayuri was able to use the power from King Neptune, mixed with her own attack to bounce Basil Jr. into the Nulll Void, where he was going to send everyone else. Thus defeating him, making sure that he never returns. Tadashi, Sayuri and King Neptune then heads back to Sakabei Village as Riku swears to get Tadashi one way or another.

Trivia

 * This is the first movie of the anime.
 * This shows the only movie where there are less than 4 main characters in the movie.