A couple is shown kissing and presumably about to have sex but they are interrupted. There is some sexual dialog in this scene but no nudity.

A man is seen fully nude laying down, but nothing obscene is shown.

There is a creature that looks phallic.

One of the scientists gets his head bitten off, and it gets thrown out of the room in view for the terrified victims to see.

Blood splatters on the floor, ceiling, and gets soaked into clothing.

When the helpless scientist is bitten by the little alien he is experimenting on, he gradually, and gruesomely changes into an ugly, horrifying monster.