User blog comment:ChishioKunrin/Giant Mech Fights = At Least Two Different Episodes/@comment-3257939-20140716205207/@comment-6830001-20140717004359

We just have to wait to know the exact reason. The fights probably take place at different times...

And I don't think a wild Kyubei or a talking cat will appear though, probably... So it must be another explanation. :D