None, however, in a few episodes Rain Mikamura (the female protagonist) is seen going through the Mobile Trace System and it shows a skin tight uniform being put on her, also in this same scene, she is heard struggling into the costume which in the English dub (and Japanese version also), might sound like sexual moaning but it actually is not.

Gundam fighting Gundam violence.

Mild language.

Some wine drinking and light smoking in some episodes.

None.