Oh yeah, recently watched Yatterman, had plenty of good giant robot action.
Starting off with a giant robot (fine, mech) with a wok for a helmet that shot metal carrot missiles out of its penis.
And Yatterwoof, a giant red dog robot (actually a robot) which suffered death by snoo snoo.
Gotta love Japan.
*edit, just to be clear, even taking that clip and the fact that the main bad guy is a little pig man who steals people's bodies by teabagging them and the next mech after the titty-machine gun one is a tentacle robot, its not a porn, its just fucked up and japany. Still, good movie.