Kikai Sentai Zenkaiger

A strange phenomenon fused the human world with the parallel world of Kikaitopia. Despite this, the inhabitants of both worlds quickly got along and live peacefully together. But now, Kikaitopia's evil rulers, the Tojitend Dynasty, seek to conquer all parallel worlds. To face this threat, Kaito Goshikida inherits the powers of all previous Super Sentai. Transforming into Zenkaizer, he joins forces with Juran, Gaon, Magine, and Vroon to protect the multiverse as the Zenkaigers! (Wikipedia)