Also, later, I'll post images for the second to last episode of Gokaiger (That Japanese forum where back to regular business this week). The appearance of MammothRanger is very cool - and we do indeed get to see TyrannoRanger, with Burai's shield, in action!
Anyway, as for this episode - having finally collected all 34 Grand Powers from the various Previous Sentai teams - the Gokaiger are ready to obtain the Greatest Treasure in the Universe. (I think a metaphor for life, or something, is waiting for them. Boy are they going to be disappointed if that's the case.)
Since there are a lot of images here, I'm splitting the post up. I'll be back also with images of the main characters in this episode.
You can find these images added here: Gokaiger Robots
Previous Sentai Powers
You can find these images added here: Previous Sentai Powers Page 2