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