Heisei Generations FOREVER
Another Den-O was created from Ataru Hisanaga after he traveled back in time with Sougo Tokiwa to find his brother Shingo and encountered Another Double. Ataru had the Den-O Anotherwatch forced into him by Another Double, forcibly turning him into Another Den-O.
Another Den-O accompanied Another Double to kidnap Shingo and bring the boy to Tid. Kazumi Sawatari transformed into Kamen Rider Grease and attempted to fight them off but was defeated. To protect his brother Ataru, Shingo then voluntarily allows the Another Riders to capture him so Ataru won't be hurt. The two Another Riders later brought Ataru to Tid for the Time Jacker to seal him to complete his plan.
Another Den-O was later defeated by Ryotaro Nogami / Kamen Rider Den-O, reverting Ataru back to normal.
Kamen Rider Zi-O