Spoil a video game without stating what game it is.

A Serbian war criminal drinks blue sap of a tree which makes him nearly invincible

 

you fight an eight head dragon for the millionth time

 

Teenagers save the world from evil.

/derp

 

The door everyone thought was evil was actually made of light.

 

10-year old saves a region from a criminal organization, by himself

 

The final boss is actually the first boss 2000 years in the past.

 

The moon is destroyed and thus the world is saved.

 

The sixteen creatures you killed are actually pieces of the one helping you.

 

The final boss, who used to be your friend but betrayed you, is the only other of your kind

 

The country's religion turns out to be a complete lie and you kill its god.

 

Post Time War Doctor Who? Wait, that's not a video game.

 

Your kind of sort of girlfriend who can rip your skull apart with her mind is not dead, she's just become an alien menace.

 

The character who you play as for most/ all of the game dies at the end of the game.

 

The woman you love is killed (unless you beat the game on Hard), and the guy you thought you could trust from the first game turns out to be the main villain.

I know this one :>

 

In the end, you get to choose between 3 different colors of explosions. After that...no idea actually.

 

The protagonist achieves victory over the antagonist.

 

Your daughter turns out to be the clone of another girl who was, before being burned alive, being bred to give birth to the hellish daemon that the cult of town you're stuck in worships.

 

Know this one. She isn't really a clone to be exact though.

 

I know, but I couldn't think of what she actually is. They're the same person but they're not the same person or some bs.
Maybe she's a nobody, idfk.

 

Got another:

The smart guy who's been helping you since the first game and is the father of a girl you may or may not be crushed on by is killed by the enemy forces during a moment of celebration in one of the most heart-wrenching conclusions ever that fuels your anger that the sequel is taking so damn long to just be announced.

She's supposed to be like, the good that was left in the original person. Or something?