1. Godzilla vs. Mechagodzilla
Wow. Does it get much stupider than this? (Don't answer that...) This movie is another supreme example of movie mash-up crappiness (and it's also yet another movie with a bonkers poster designed solely to make your sinuses ache). The plot is so basic there's little point mentioning it. Suffice to say, there are two giant monsters â€” the reptilian legend and his robotic nemesis â€” and they fight. And generally go on the rampage. A lot. Released in the US as Godzilla vs. Bionic Monster, it never really hooked Western audiences, but is a bona fide classic back in the Land of The Rising Sun.