Sometimes there's two things, that are connected by a larger, usually physical, object, but are usable on their own.
And there's multiple tropes that cover such happenings, so this is the index for it.
Double-Sided Tropes overlap with this, when the two things are two sides of a larger item.
One with the Index, is the index for thinking beings fusing together, while this is more about inanimate objects. But there is some overlap. And The One and Only Index overlaps in the cases where the number "one" is significant.
Sub-indexes / Sub-Tropes:
- Double Meaning: For words that have multiple meanings.
- Swiss-Army Weapon: For weapons that can attack in multiple different ways without being deconstructed like Bifurcated Weapon does.
Tropes:
- Ability Mixing
- All Your Powers Combined
- Bifurcated Weapon
- Combination Attack
- Conjoined Twins: Identical twins born with connected bodies.
- Double Date
- Double Play
- Double Weapon
- Either/Or Title: A work has two titles.
- Every Device Is a Swiss-Army Knife
- A Head at Each End: A creature has a head on both sides of its body.
- Hive Mind: Multiple beings sharing one mind.
- Hybrid Genre
- Juxtaposed Halves Shot: A Stock Pose where half of two characters' sides/faces are juxtaposed to or beside each other.
- Mental Fusion
- One Dialogue, Two Conversations
- One Game for the Price of Two: A game comes in two or more versions with small differences that are required for completion.
- One Scene, Two Monologues
- Portmantitle: A title that combines two words into one.
- Shoe Phone
- Two-Faced
- Two Scenes, One Dialogue
- Two Siblings In One
- Yin-Yang Bomb