Aeon Must Die!

Reach the neutral ending

Clear the Scarlet encounter (Kill or Spare)

Reach the Aeon ending

Clear the Ash encounter (Kill or Spare)

Kill an enemy by using a bike skill

Kill 13 enemies without becoming Overheated or Drained

Complete all side story chapters

In Rex's first encounter, kill all enemies before being killed

Defeat Scarlet without becoming Overheated

Complete a single run without purchasing any upgrades (bike upgrades only)

Clear the Onyx encounter (Kill or Spare)

Complete all tutorials

Challenge Aeon in a Trial Within and win

Defeat Ivory on the first encounter

Reach the maximum level for all enemy attributes in a single save file

Overheat an enemy and throw them to an assist row

Reach an ending in a single save file without letting Aeon take full control or dying with honor

Kill 13 enemies within 3 minutes in a single fight

Have 3 bike upgrades equipped

Reach SSS rank on any mission

Escape Ash's dimension with a perfect parry

Defeat Onyx's second stage without letting Onyx use any assist actions

Die with honor

Reach the good ending

Complete a chase sequence without getting hit during the Ash encounter

Reach S rank on any ending

Lose all Purpose and let Aeon take control

Acquire all Aeon's Powers by buying them

Complete a revenge mission

Complete the Scarlet encounter in under 2 minutes 30 seconds

Destroy an enemy bike with an Overheated enemy

Reach all endings in one save file

Clear the first Ivory encounter (Win or Lose)

Kill 13 enemies without getting hit

Use all of Onyx's attacks against them during the first stage of the Onyx encounter