Image Links / Fetus Terrible

• Isn't being pregnant a blessing?◊ (Fate/stay night)
• How about a giant fetus that you get to fight in a goddamn spaceship? The Bio Strong boss has you covered.◊ If you prefer your fetuses to be more of a mechanical flavor, then check out Bio Strong's cousin(?), the Mech. Bio Strong◊. (Darius)
• For a more creepy example, there's It Lives! from The Binding of Isaac. Comes in Rebirth flavor, or the rather silly looking version from the original◊.