Although Gundam 0079 is a movie with interaction, the interaction is pivotal to the game's progress. Also, choosing the wrong direction or action can also bring on an early death. It is seldom that a wrong choice will allow you to live past your error. Save, save, save. Saving can also keep you from watching a fairly long movie segment over and over again, should you keep getting killed right after it.
Some scenes require the usage of the mouse, followed by a command from the keyboard.
The interface itself relies on four action icons at the bottom of the screen. Consulting the manual is good idea prior to playing. The controls and various interfaces you are given to play with change often, and you will need to be able to recognize each of them and react quickly once interaction starts. The default keyboard setup is actually quite adequate, although you can change most of the settings to fit your own needs. Action sequences often change to show the action from different viewpoints and perspectives.