|This article is about a/an set of alternate forms in Kamen Rider Ex-Aid.|
- Gatton Bugster (Ex-Aid Episodes 19)
- Vernier Bugster (Ex-Aid Episodes 20)
- Kaiden Bugster (Ex-Aid Episodes 21)
- Charlie Bugster (Ex-Aid Episodes 22)
- Level 30 Bugsters fusing with their hosts are similar to Fusion Roidmudes from Kamen Rider Drive.
- Kamen Rider Ex-Aid
- Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider
- Episode 19: A Sudden Fantasy!?
- Episode 20: Take Off Against the Direction of the Wind!
- Episode 21: Chasing the Mystery!
- Episode 22: Engineered History!