Here is the full list of all 29 ESCHATOS achievements.
Clear ORIGINAL HARD Mode.
Hold out until the mirror shield autodestructs.
Play all modes and difficulties.
Reach option level 25.
Clear TIME ATTACK Mode.
Watch the replay of another player.
Clear ADVANCED EASY Mode.
Reach option level 10.
Clear ORIGINAL NORMAL 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)
Clear ORIGINAL EASY Mode.
Destroy the 3 eggs on the carrier in Area 14.
Upload a score to the global leaderboard.
Defeat the Kraken in Area 24 before it is killed by enemy laser.
Reach option level 50.
Clear ORIGINAL HARDEST Mode.
Clear ADVANCED NORMAL Mode.
Clear ADVANCED HARD Mode.
Clear ADVANCED HARDEST Mode.
Reach a x20 score multiplier.
Survive over 30s with 0 shield.
Destroy over 512 enemy bullets with one shield activation.
Finish off the final boss at point-blank range.
Color all 10 planes in the epilogue.
Reach loop 4 in ENDLESS MODE.