Kamen Rider

Michihiko Zaizen

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This article is about a/an villain in Kamen Rider Ex-Aid and Kamen Rider Ghost.
Michihiko Zaizen
Michihiko Zaizen
Dr. Pac-Man
Gender: Male
Series: Kamen Rider Ex-Aid
Motif: Video Game
Biological Games
Villain Type: Scientist
Leader (Former)
Renegade (Current)
Affiliation: Bugsters
Homeworld: Earth
Height: TBA cm
Weight: TBA kg
First Appearance: Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider
Last Appearance: TBA
Number of Episode
1 (Movies)
2 (Specials)
Full list of appearances
Actor: Shiro Sano


Dr. Pac-Man

Genome Tab


Michihiko Zaizen (財前 美智彦 Zaizen Michihiko), also known as Dr. Pac-Man (DR.パックマン Dokutā Pakkuman), is a villain in Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider. He is the leader of Next Genome Institute and also can transform into the famous video game character, Pac-Man. By using Gashacon Bugvisor, he can become the Genomes (ゲノムス Genomusu).[1][2]

Character History

Early Life

He operated on Emu Hojo to spread the Bugster virus, on the request of Kuroto Dan. A New Challenger Appears!

Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider

Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider

"Tricks": Kamen Rider Genm

Dr Pac-Man holding the three Legend Gamer Gashats

Dr.Pac-Man holding the three Legend Gamer Gashats

He appears to have survived the battle he had with Emu/Kamen Rider Ex-Aid and Takeru/Kamen Rider Ghost, as he arrives to save Emu from the copies of Kamen Riders Double, OOO and Fourze whom Kamen Rider Genm summoned with the Ganbarizing Gashat, bringing with him the Pac Adventure, Famista and Xevious Legendary Game Gashats. Part. I: Legend Rider Stage

Distracting the Riders with his Gashacon Bugvisor, "Dr. Pac-Man" took Emu away before being confronted by Hiiro Kagami and Taiga Hanaya, both intent on defeating him again while Emu started to trust him. With Genm and his Riders catching up with them, "Dr. Pac-Man" handed a Gashat to each of the three doctor Riders, allowing them to face Genm's Riders, before taking his leave with Genm in pursuit. Ultimately, "Dr. Pac-Man" was caught by Genm who took his helmet off, recognizing his true identity as he presented a fourth Gashat, Taiko no Tatsujin. Part. II: Legend Gamer Stage

Part. III: Final Legend Stage


to be added

Powers and Abilities

to be added


Michihiko Zaizen as Genome Bugster
"Infection! Let's Game! Bad Game! Dead Game! What's your name?! The Bugster!"
―Transformation Announcement[src]

By using the Gashacon Bugvisor, he can transform into the Genomes.


Behind the scenes


  • Michihiko Zaizen & Dr. Pac-Man was portrayed by Shiro Sano (佐野 史郎 Sano Shiro). As Genomes, his suit actor is unknown.


  • Michihiko Zaizen is the second character who uses the Gashacon Bugvisor to become a Bugster. The first one is Graphite.
  • Genomes is designed by Niθ.



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