Ressha Sentai ToQger Vs. Kamen Rider Gaim Spring Vacation Combining Special is an one-hour Super Hero Time special where Kamen Rider Gaim and his fellow Armored Riders meet up with the Ressha Sentai ToQger. The first of a new trend of crossovers between Kamen Rider and Super Sentai following the prototype 'World of Shinkenger' two-parter of Kamen Rider Decade which also featured cameos from said series' characters in two episodes of Samurai Sentai Shinkenger.
The ToQgers stop at a train station near Zawame City whose citizens are friendly all the time and no Shadow Line activity seems to take place. However, while exploring the city and getting ready to dine on the local food, a threat emerges in the form of an Inves. When the ToQgers try to confront this enemy, they bump into Kouta Kazuraba who transforms into the protector hero of Zawame City, Kamen Rider Gaim.
- Behemoth Battle: ToQ-Oh vs. a giant Lion Inves.
- Big Damn Heroes: The first three Showa Riders, Riders 1 and 2, and Kamen Rider V3, appear to rescue the ToQgers from Kamen Rider Fifteen.
- Crossover: It's right there in the title.
- Curb-Stomp Battle: The ToQgers receive this from Fifteen before the Showa Riders come to help them.
- Delayed Reaction: When Kamen Rider Gaim and the ToQgers transform for the first time to fight the monsters, they stopped their posing when they finally noticed the other transforming. When they all fully transformed, they stood staring at each other for a few moments before suddenly exclaiming in surprise.Kouta: HENSHIN!Rider Belt: Lock On!Sentai Band: Now transforming. Please stay behind the white line.Right, Tokatti, Mio, Hikari, and Kagura: TOQ CHANGE!Rider Belt: Soiya!(Both transform)Kouta: (pauses posing and notices the Rainbow Line Sentai transforming) Huh? (Henshin is still going)Rider Belt: Orange Arms! In the spotlight on stage!Right, Tokatti, Mio, Hikari, and Kagura: (pauses posing and notices Kouta transforming) Huh? (Henshin is still going)Sentai Band: TOQ ICHIGOU! NIGOU! SANGOU! YONGOU! GOGOU!(Transformations complete. Beat)Kouta: ...Right, Tokatti, Mio, Hikari, and Kagura: ...Everyone: EEEEEEHHH!!??!?
- Early-Bird Cameo: Kamen Rider Fifteen, Badan's evil Rider, makes his first appearance here.
- Legion of Doom: The Underground Empire Badan, the villains of the movie who originally appeared in the ZX special, make their first appearance here.
- Make My Monster Grow: A Lion Inves grows to Sentai Robo size after eating a bunch of Helheim fruits, luckily at the right time that ToQ-Oh is in town to stop it.
- Monster of the Week: Moguraroid, a mole monster of the Underground Empire Badan, who appears exclusively in this special.
- Mythology Gag: Mio, ToQ 3, openly questions why V3 isn't just named #3 like his two predecessors. The original incarnation of the third Kamen Rider, who had never made it to TV, was indeed just Kamen Rider #3 and appeared not too disimilar to the Double Riders.
- Prequel: To Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai, which premiered the day before.
- Production Foreshadowing: A reimagined incarnation of Kamen Rider 3 would star in the next Spring Taisen, Super Hero Taisen GP. Furthermore, like Fifteen before him, he even makes an Early-Bird Cameo in the next Spring Vacation Special, Ninninger vs. Drive.
- Versus Title: In this case, there is no conflict between the starring heroes.