Ghidrah The Three-Headed Monster (1964)

This is one the most important in the series because Toho finally gave Godzilla an arch rival. Ghidrah's a weird looking monster, a three headed dragon from space that can shoot lightning out its mouths. His name was changed later in the series to Ghidorah and the prefix King is thrown on his name here and there. In this one, aliens from outer space take control of a targetted princess to warn the humans of an attack from Ghidrah. Pretty poor planning on their part because like I said she's being targetted by assasins. Well, like they promised, Ghidrah shows up with his lightning blowing up everything in Osaka either with lightning or his supersonic flying speed. As Ghidrah's raising hell on Osaka, we see Godzilla and Rodan (A giant pterodon that starred in his own film) beating each other. I guess Godzilla just isn't a people person. Anyways, he and Rodan just freaking hate each other and beat the crap out of each other, so Japan is pretty much screwed with 3 monsters destroying everything. Then Mothra comes in. In larvae form because the other one is supposed to be dead. She tries to take on ghidrah alone and gets beaten to a pulp. The twin faries get Mothra to go up to Godzilla and Rodan and try to get them to team up on Ghidrah. To get their attention, she spits web on Godzilla. A funny moment here, as Rodan starts laughing at him! Then when Mothra does it back to Rodan, Godzilla has good hoot himself. You can really tell how the series was trying to appeal to a younger demographic by applying human traits. Bad idea if you ask me. Godzilla and Rodan stop playing volleyball with a boulder long enough for them to do monster talk while the twin faries translate for us idiot humans. The battle begins shortly after this and this is where monster rumbles were born. 4 monsters beating each other up? Whats better than that?