Answer:

endings

Answer	Crossword Clue
ENDINGS	Concluding parts
ENDINGS	They may have twists
ENDINGS	Some games have multiple ones

ENDINGS	Happy followers
ENDINGS	Codas and cabooses
ENDINGS	Denouements
ENDINGS	Closes
ENDINGS	They're often served up with twists
ENDINGS	Codas
ENDINGS	Bad things to give away
ENDINGS	The All-American Rejects' are "Happy"

ENDINGS	Many have twists
ENDINGS	Nerves and novels have them
ENDINGS	The movie "Clue" has three of them
ENDINGS	Some are happy