The enemy command ship crashes into a moon. Many deaths are implied.
A bad guy attacks two aliens and knocks them out, hitting one in the face with a metal weapon. Not violent.
An alien attacks a police officer offscreen, and assumes his identity.
The beta unit crashes a truck into a landed enemy ship.
An alien shoots the beta unit in the stomach, and there is a clear hole in his stomach with green liquid and wires coming out, but he is unhurt.
As the villain appears in a projection to deliver his threats, he demonstrates his competence by showing a spy he caught being tortured to death. The spy is held immobile in a chair while an energy beam fires into his head. He screams a great deal, and his face begins to blister and shrivel before the video is cut off.
The enemy bombards the base with hurled meteors, while a traitor sabotages the base's defenses to allow the attack to destroy it.
There is intensive spacefighter combat with the heroes piloting one fighter craft against whole squadrons of the enemy.