Intangibility

Summary
The ability to pass through physical matter.

Capabilities
User is able to move through objects and ignore most physical effects in their way, exact means how this is done vary between slipping partially into other dimensions, being able to make their own particles move between other particles, being non-physical being of energy, vibrating their molecules into a new quantum frequency, etc. Regardless the user is able to ignore most attacks, physical dangers and gravity.

Type 1: Incorporality
The most common type among all, in which the user becomes untouchable by no longer being formed of physical matter, losing the mass and failing to occupy a place in space. Generally used by ghosts and spirits, and can also be used by characters capable of dematerializing their body.

Restrictions: Depends on the nature of the being.

Examples of users:Fantasmatic (Ben 10), Silver Surfer (Marvel), Brook (One Piece), Hao Asakura (Shaman King).

Type 2: Molecular Vibration
The user becomes intangible by vibrating the molecules of his body, causing them to cross other bodies. Generally used by beings who have a great speed. To maintain it it is necessary that the molecules remain in constant vibration.

Restrictions: The user needs to maintain a constant vibratory pattern for some object or burst. Stopping this pattern stops intangibility.

User Examples: Some DC Comics sprinters (Boost, Barry Allen, Superman, Wally West, Eobard Thawne), Sonic, Typhoon (Marvel Comics)

Type 3: Energy
The user is formed or converts his body into an energy state. Restrictions: Generally may be affected by Energy Manipulation. Certain types of characters that can "hurt" energy as well.