[AkibaSilver]

The Showa riders would kick all the ass they could, while Shin tries to help, and terrifies the Invess away, because Shin if freaking terrifying

Kuuga would destroy huge sections of the damn place with Ultimate Rider Kicks, Agito would punch stuff in the face while G3 machine guns everything, no idea what Ryuki would do, Faiz would argue with Kaixa about what to do, and Blade would try to see how he can sacrifice himself and fix it all.

The Hibiki Riders would play music (to help!), Den-O would Momotaros the **** out of everyone, Kiva would... I don't know, I only got up to episode 20ish, and Decade, well, he would be Decade/a massive ****.

Double would try to figure out what was happening, OOO would burn/freeze it all while Birth shoots everything in sight, Fourze would burn everything while Meteor punches stuff in the face, Wizard would go on about being the last hope while Beast actually sorts it all. There, I think I've covered most of them.

Oh, and Souji Tendou would just proclaim himself to be the saviour, and when it's over, he'd still proclaim himself to have solved it all