I saw a little bit of Kamen Rider Decade that was in a cross-over of Shinkenger. I ended up seeing a few episodes of that season but didn't get a chance to watch it all. My computer is limited on space right now. Once I get some space cleared up, I'll be sure to watch that season of Kamen Rider. I've also got to see a little bit of Kamen Rider Black RX but it was only like two episodes on youtube.