Children Versus the System
Ender's GameBattle School students slowly realize the adults are their true enemy, and Ender's rebellion against the rules becomes his final victory.
increasing
Bearing strength in each event
decreasing
Dap's Brutal Orientation

Dap's Brutal Orientation
Dap warns the Launchies that nobody will help them, that murder is forbidden, and that figuring out the system is their only survival strategy. He is friendly, but only as a paid 'mom.'
Context
Dap is the closest thing to an adult ally the Launchies have, but his job is to prepare them for a brutal institution.
Significance
His speech introduces the core conflict: the students are pawns in an adult game.
Dink's Heresy

Dink's Heresy
Dink tells Ender that the teachers are the real enemy, that the bugger war may be a lie, and that the Battle School exists to keep the I.F. in power. Ender is shaken but still believes the buggers are real.
Context
Dink has refused promotion twice and refuses to be a commander because he sees the psychological destruction the game causes.
Significance
Dink's words plant the seed of doubt that will later help Ender see through the Command School deception.
The Manipulated Letter

The Manipulated Letter
Ender realizes that Valentine's letter, though genuine, was solicited and censored by the teachers. He feels the one pure love in his life has been used as a control mechanism.
Context
Graff has told Valentine that Ender must be comforted, but he has also chosen a moment to maximize Ender's dependence.
Significance
This revelation makes Ender fully paranoid about the adults' motives and reinforces his isolation.
Anderson Versus Graff

Anderson Versus Graff
Major Anderson protests that Graff's rigged battles will destroy the meaning of the game. Graff answers that the game is only a training exercise and that the real enemy is waiting.
Context
Their argument reveals the conflict inside the adult world itself: Anderson wants fairness, Graff wants results.
Significance
Ender is the battlefield for this adult struggle, and it will shape his entire military career.
The Game Is Over

The Game Is Over
Ender wins an impossible two-army battle by performing the victory ritual before the enemy is eliminated. When Anderson announces a rule change, Ender shouts that the game is over and walks away.
Context
Ender is physically and emotionally exhausted, and the adults' constant rule changes have pushed him to defiance.
Significance
This rebellion marks the limit of the Battle School's power over Ender; he will no longer play their game, and they must send him to Command School.
Ender's first day in the launch barracks
during Ender's time in Rat Army
after Valentine's letter is slipped through
when Dragon Army is formed
after Ender's victory over Griffin and Tiger