Arthur Gaizen is The main antagonist in Kamen rider Nickelodeon. He was born in July,12,1970 before he discovered the Bugsters in 2000,he planned to erase all of humanity by creating a powerful Bugster so powerful it can kill humans,before creating the powerful Bugster,he created Linus loud by absorbing energy from painful & bad memories about Lincoln's fears,hate,& rage of his sisters & what his sisters of what they done to him,& once he finally borns Linus Loud,he brainwashed him by using the absorbed energy of Lincoln's memories of his hates,fears,& angers of his sisters & these memories were also combined to create the new Bugster called "Link-Ster" after completing Linus loud,Linus takes the lead,while dr.pac-man hired new villains & villains from their worlds to destroy humanity on Lincoln's combined world.
Name:Dr.Arthur Peter Gaizen
Villain Type:Doctor & Leader (Current)
Enemies:Lincoln Loud & Everyone else.