I'll agree that Decade had a cool concept. I loved the whole idea of world hopping. And I also love how Decade brought back past monsters from previous seasons. Monsters are something that I would've loved to have seen Gokaiger play around with a bit more. Ah well.
BUT! What ruins Decade's ideas for me are the stories and the characters. I think the worst offender was the Agito World. Onodera sees someone who looks like someone who died in his life. And he can't help but feel it's necessary to go talk to her. But instead of just directly talking to her, he comes up with this lame-brained plot of trying to impress her by using the G3 suit. What, the Kuuga suit wouldn't be enough to impress her? In fact, it's like he forgot he could turn into Kuuga at all! Agito had such a cool concept, why did it have to go to waste here? :bawling: