Here is the full list of all 29 ESCHATOS achievements.
Reach option level 50.
Reach loop 4 in ENDLESS MODE.
Clear ADVANCED HARDEST Mode.
Clear ORIGINAL HARDEST Mode.
Clear ADVANCED HARD Mode.
Clear ORIGINAL HARD Mode.
Clear ORIGINAL NORMAL Mode.
Clear ADVANCED NORMAL Mode.
Finish off the final boss at point-blank range.
Destroy over 512 enemy bullets with one shield activation.
Play all modes and difficulties.
Color all 10 planes in the epilogue.
Reach option level 25.
Watch the replay of another player.
Reach a x20 score multiplier.
Hold out until the mirror shield autodestructs.
Survive over 30s with 0 shield.
Defeat the Kraken in Area 24 before it is killed by enemy laser.
Clear TIME ATTACK Mode.
Beat the mysterious organism that had merged with the moon and escape. (Normal difficulty or higher)
Fight off the giant mothership in Area 20 and plunge towards the moon. (Normal difficulty or higher)
Fight off the transport ship in orbit. (Normal difficulty or higher)
Follow the transport ship into orbit. (Normal difficulty or higher)
Confront the giant mothership in Area 5. (Normal difficulty or higher)
Reach option level 10.
Clear ADVANCED EASY Mode.
Destroy the 3 eggs on the carrier in Area 14.
Upload a score to the global leaderboard.
Clear ORIGINAL EASY Mode.