Shapeshifting is the ability to change appearance and/or body structure. Different forms include:

• Metamorph (limited to human forms, unable to change mass)
• Animorph (take on animal forms. May be able to take on the abilities of the altered form)
• Polymorph (assume any form, size, mass and appearance at will).
• Therianthrope or "were-" would transform from a human to an animal (as in a "werewolf").
• Liquification is ability to turn partially or completely into a liquid.
• Sublimation Ability to transform into a gaseous, mist, or fog-like form.

Elasticity (stretching body like Mr. Fantastic may be considered a form of shapeshifting. So too may be changing the substance of a body into an inorganic substance (changing to a metal form like Colossus).

For a full list of shapeshifters, see Category:Shapeshifters.