[Sunred]

The Doremifa Beat console's curtains in Kamen Rider Ex-Aid are decorated with song titles that refer to past Heisei era Riders.

Alien 4 = Kamen Rider Kuuga, refers to Kuuga's alias by the police Unidentified Life Form no. 4

Lost Memory = Kamen Rider Agito, refers to Shoichi/Agito's amnesia

Mirror Labyrinth = Kamen Rider Ryuki, refers to the Mirror World

Go!Go!Go! = Kamen Rider Faiz, refers to Faiz's input code 5-5-5 which is go-go-go in Japanese

Spade No Ace(Ace of Spades) = Kamen Rider Blade, refers to Blade's motif

Gishinanki(Dark Oni with Righteous Heart) = Kamen Rider Hibiki, refers to the onis in the show having hearts of righteousness, since traditionally onis are considered evil entities

Tofu Ondo~Obaachan no Aji(Tofu Ondo~Grandmother's Flavor, ondo is a genre of Japanese folk music) = Kamen Rider Kabuto, refers to the tofu Souji/Kabuto buys in episode one and also his "Grandmother once said..." phrases.

Climax High = Kamen Rider Den-O, reference to the opening theme Climax Jump by AAA

Vampire Melody = Kamen Rider Kiva, refers to Fangires, a variant of vampires, and the music aspect that is prominent throughout the show

Nine the World = Kamen Rider Decade, refers to Decade's main journey through the nine rider worlds

Kaze to Nazo to Hanjuku Tamago(Wind and Mystery and Half-boiled Egg) = Kamen Rider W, refers to the prevalent wind theme throughout the show, its sub-genre as a detective show, and Shotaro Hidari being called a "Half-boiled Detective"

PAN-2 000 = Kamen Rider 000, refers to the titular rider and Eiji and his undies

Watashi no Kare wa Uchuhikoshi(My Boyfriend is an Astronaut) = Kamen Rider Fourze, refers to the overall space theme of the show

Magic Prince = Kamen Rider Wizard, refers to Haruto/Wizard using magic and also possibly that he is Koyomi's "prince"

Kiwami no Shogun(Shogun of the Highest) = Kamen Rider Gaim, refers to Gaim's Kiwami Arms

Driving Heart = Kamen Rider Drive, refers possibly to the show's themes of "having a heart/being human" and cars

Ghost Dancer = Kamen Rider Ghost, refers possibly to the icon ghosts dancing while on standby before Takeru pulls the lever on the Ghost Driver