Here is the full list of all 37 CHRONO CROSS: THE RADICAL DREAMERS EDITION achievements.
Triumph in 500 battles.
See Ending 9: The Dragon God's Revenge.
Use the triple tech Z-Slash.
Use the Chrono Cross item to recruit all party members.
Obtain 99 level-growth stars.
See Ending 7: The Viper Orphanage.
See Ending 8: The Dark Fate.
Collect all 15 types of window frame.
See Ending 6: The Last Stand.
See Ending 3: The Magical Dreamers.
See Ending 2: The Acacian Empire.
See Ending 1: The Developers' Room.
See Ending 5: The Rebirth of Marbule.
Use Harle's unique level 7 tech, Lunairetic.
See Ending 4: The Shop Staff and the Three Unlikely Heroes.
See the bad ending.
See the good ending.
Defeat the evolved form of the Time Devourer.
Use Kid's unique level 7 tech, Hot Shot.
Obtain Chrono Cross, the rainbow-aligned Element.
Use the triple tech Delta Force.
Defeat FATE, the mother computer of Chronopolis.
Arrive in Chronopolis, the Time Fortress.
Use Serge's unique level 7 tech, Flying Arrow.
Use the Dragon God relics at the Dead Sea Ruins to enter the Sea of Eden.
Create a rainbow weapon.
Create a piece of rainbow armor.
Defeat Dark Serge at Fort Dragonia.
Use Lynx's unique level 7 tech, Forever Zero.
Defeat Dario and reforge Serge's Sea Swallow into the Mastermune.
Get 10,000 points in the compass roulette mini-game.
Complete the Grand Slam.
Defeat Lynx at Fort Dragonia.
Re-visit the labyrinth in Fort Dragonia—this time, for real.
Successfully feed the dragons 100 times in the dragon-feeding mini-game.
Flee from a battle.
Wake up after having cleared the labyrinth for the first time in the dream.