The circumstance in which one can only use one power at a time.
The user possesses several different powers, but can only use one specific power at a time, and must consciously change between them.
- Ultra Boy (DC Comics)
- Delsin Rowe (Infamous: Second Son)
- Alpha (Marvel Comics)
- Triborg (Mortal Kombat X)
- Makoto Yuki (Persona 3); via Materialized Guardian to summon one Persona at a time.
- Yu Narukami (Persona 4); via Materialized Guardian to summon one Persona at a time.
- Cannibal Candy (Unbreakable Machine Doll)
- Bionic Humans (Lab Rats); some can use two at a time.
- Magic Users (Harry Potter); via Spell Casting, specific spells for specific effects at a single time.