Having cleared the preliminaries, twenty-four pairs of twins face gargantuan challenges on an enormous athletic field. On this man-made island in Tokyo Bay, the bonds between twins are pushed to the limit in the Ultimate Athletic Tournament! The tournament consists of three insanely difficult obstacle courses. Teamwork and human drama are forged within these grueling challenges. Participants are limited to twins, but exactly what constitutes a "twin" is unclear, resulting in some unusual pairings. In the past, controversial appearances have included clones, adopted siblings, or triplets in shifts.

The members of a sci-fi club accidentally spill Coke on the remote controller of an air-conditioner during summer and suddenly a time machine appears in their sweating bath-like clubroom.

Drawing influence from the street musicians of Miyagi, four high school students form a band and spend their free time practicing for their school's upcoming festival. When the festival is abruptly concealed, they come up with a dimwitted strategy of faking a bomb threat to the school in order to force the principal to change his mind. Their plan seems to work at first, but when a real bomb goes off, the group is forced to take responsibility for the explosion and they are kicked out of school. Three years later, more details of the incident is revealed as the youth look back on the past.

Six guys wacky guys, who worked together at a summer beach bar job, come across a letter from dream girl Eriko. The letter isn't addressed to anyone in particular, but asks if the recipient would meet her at the beach bar on Christmas Eve. Each of the men believe they are the one Eriko wants to meet and a heated battle between the lovelorn men begins. A seventh man, attorney Sekiguichi, then appears and also enters the competition!

While at the royal ball with Cinderella, Little Red Riding Hood finds herself in the middle of a mystery. Can she solve the case before midnight strikes?

Set 2 years after prior film "Bayside Shakedown 3: Set the Guys Loose," a major case occurs that has the potential to take down the entire police organization. For the next 3 days, Shunsaku Aoshima and his colleagues struggle to unravel the case...

High school student Kyosuke Shikijo is the most talented member of the school's martial arts of the fist club. His late father was detective and Kyosuke share his father's strong sense of justice. Kyosuke also has a secret. Kyosuke likes to wear female underwear and transforms himself into the alter ego "Hentai Kamen," wearing female underwear and gaining superhuman powers. This unusual interest also comes from his parents, with his father a masochist and his mother a sadist. By chance, Kyosuke gets the underwear of female high school student Aiko Himeno. With her underwear, he gains various pervert techniques and attempts to protect Aiko from a dirty and heinous teacher.

Haru is a rather cool fifth-grade elementary school student who shares the same tastes as her mother’s younger sister Yuko (Kaho) and can tell Yuko what she really feels. On the first day of the summer vacation, Haru is kidnapped. The culprit is her free-spirited father Takashi who disappeared from home two months ago.