- Negative Mass Control/Manipulation
User can create, shape and manipulate negative mass, a hypothetical concept of matter whose mass is of opposite sign to the mass of normal matter, e.g. −2 kg. Such matter would violate one or more energy conditions and show some strange properties, stemming from the ambiguity as to whether attraction should refer to force or the oppositely oriented acceleration for negative mass.
- Enhanced Strength by turning a part of body (e.g hands and arms) into negative mass and using it to repel a heavy object of positive mass.
- Element Zero (Mass Effect)
- Lunarium (A Voyage to the Moon)
- Underspace (Marvel Comics)