Aeon Must Die! achievements

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

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

Complete all tutorials

Overheat an enemy and throw them to an assist row

Kill an enemy by using a bike skill

Reach SSS rank on any mission

Clear the Scarlet encounter (Kill or Spare)

Clear the Onyx encounter (Kill or Spare)

Complete all side story chapters

Clear the Ash encounter (Kill or Spare)

Reach the Aeon ending