The power to transform people into alien creatures. Variation of Conversion.
- Alien Conversion/Transformation
The user is able to transform other beings into alien creatures.
- Ood (Doctor Who)
- Saturnyns (Doctor Who)
- Flood (Halo); via Conversion Parasite
- Zerg (StarCraft)
- Omnitrix (Ben 10)
- Highbreed Pulse Generator (Ben 10: Omniverse)
- Electro Axe (DC Extended Universe)