Bakutofūji-ER of the Timer is a horseshoe crab-theme member of the Machine Onslaught Empire Matrintis.
Bakutofūji-ER was initially sent out by Metal Alice both to attack the Goseiger as well as to cover the real reason the Matrintis forces wanted the Gosei Angels: to test their newest weapon, Buredo-RUN of the Cyborg after his cybernetic adjustments and upgrades. Using his time manipulation, the Matroid easily defeats the Gosei Angels alongside Buredo-RUN's successful test. In order to protect the new cyborg, Bakutofūji-ER is immediately grown so the Goseiger would be forced to fight it. However due to Buredo-RUN's programming holding on aspects of his hatred of the Goseiger, he ends up throwing an attack simultaneous to the giant Matroid, sending both him and Alata to a time prior to Heaven's Tower's destruction by Dereputa of the Meteor at the start of Warstar's invasion.
In the past, Alata is forced to continue fighting Bakutofūji-ER even as his four teammates end up not having the abilities at this point to even counter a Matroid in combat. But through watching the "future" Gosei Red in combat, they all gain the courage to fight back and thus gain the Change Cards to finally become Goseiger. Using the Gosei Buster, the five Goseiger damage Bakutofūji-ER, causing him and Alata to be sent back to the present while wiping away all traces of temporal changes, allowing for time to flow as it had prior to their intervention.
Once returned to the present, Bakutofūji-ER is grown once again to cover Robogog as he had collected data on Alata and the Gosei Angels, but Bakutofūji-ER is quickly defeated without his temporal powers by Ground Gosei Great.