Watch this one in HD if you can, its worth it.
100% the best giant robot opening theme ever (well maybe Gaogaigar final is a little better but its the same song) This opening can not be beat. It embodies everything cool and fist clenching-awesomeness that comes with super robots. what else can I say? Its GAOGAIGAR!! Live and breath this opening song and you will feel good always.(probably)