The Killer in the Mirror
Ender's GameEnder fears he is Peter; every act of self-defense makes him more certain that he is a monster, until the final xenocide destroys that certainty.
increasing
Bearing strength in each event
decreasing
I Am Just Like Peter

I Am Just Like Peter
Ender cries at the bus stop after the Stilson fight, convinced that without the monitor he is as bad as his brother. The thought terrifies him.
Context
Peter has always been the violent one, and Ender has defined himself against Peter. This fight proves he can be violent too.
Significance
The fear of being Peter becomes Ender's internal saboteur, driving him to hate every victory.
Breaking Bernard's Arm

Breaking Bernard's Arm
When a boy hits him from behind, Ender grabs his wrist and pulls, sending him flying across the shuttle and breaking his arm. Ender tells himself it was self-defense, but he feels the killer inside.
Context
The launch is Ender's first encounter with null gravity, and he accidentally uses too much force.
Significance
The incident teaches Ender that his own strength is unpredictable and dangerous, and the adults are watching approvingly.
Peter's Face in the Game

Peter's Face in the Game
The mind game shows Ender a mirror where Peter's face appears, bloodied and eating a snake. Ender knows the game is revealing his own fear.
Context
The computer has accessed a current picture of Peter, proving that Ender's relationship with his brother is the central conflict of his psyche.
Significance
Ender cannot escape the idea that his military brilliance is just a refined version of Peter's cruelty.
Crippling Bonzo

Crippling Bonzo
During the shower fight, Ender kicks Bonzo in the groin and head-butts him so hard that Bonzo's nose is pushed into his brain. Bonzo dies, though Ender is not told.
Context
Ender is fighting for his life and chooses the most devastating moves he knows. The aftermath looks like a dead, empty body under the water.
Significance
This is the first time Ender's self-defense results in death, and he begins to dream about Bonzo's corpse.
I Didn't Want to Kill Anybody

I Didn't Want to Kill Anybody
Ender screams at Graff and Rackham that he never wanted to kill anyone, that they tricked him into xenocide. His identity as a good person collapses.
Context
The adults explain that they had to deceive him because a compassionate child could never choose to destroy an entire species.
Significance
Ender's final acceptance of this guilt transforms him from a soldier into a mourner, and eventually into the Speaker for the Dead.
after beating Stilson
on the shuttle to Battle School
during the mind game, after Ender becomes famous
the shower fight
after Mazer reveals the truth about the Third Invasion