Kamen Rider 555 (2003)

Very Dark Tokusatsus aimed for a more mature audience.

-Both Kaiju/Enemies in these two kill humans in brutal ways. Both contain graphic violence, and the use of alcohol.
-Mature themes, both are not for children.

-If you like Tokusatsu grim dark, give these two a try. If you still like lighter and softer go watch Sailor Moon or Super Senttai.

While at first glance the two series may appear to not have a common trait, both series have a sole company that was responsible for the existences of Kamen Riders in their own universes. And while the Orphenochs and Humagears/Magears were exact opposites of each other (humans that were once dead and gained monster abilities versus human-like machines with an ability to turn into monsters once corrupted) their dilemmas and reasoning to revolt against Kamen Riders and humans, in general, were quite similar.