Meet Kai, Robotboy and Conker/Find the Keyblade, Crest and Sword

Luffy and his crew are falling into Darkness

Luffy: Now we can be... one of Darkness.

His hat fell off and someone grab it and it was Kai, Robotboy ￼ and Conker

Kai:

Conker:

Robotboy:

They save them from falling into Darkness

Zoro:

Conker: There's no time to talk!

They saw swarm of Heartless

Sanji:

Robotboy:

They are fighting them and they defeated them