Here is the full list of all 64 Ziggy's Cosmic Adventures achievements.
Ejected a dead Ziggy into the vacuum of Space.
Don't Respond to Any Question.
Collect all Bronze trophies.
Collect all Silver trophies.
Collect all Gold trophies.
Convert all your trophies to Cosmic.
Complete all story paths.
Beat the Empress.
Escape the Empress.
Dropped Ziggy 100 times.
Killed Ziggy 100 times.
Complete the Kamney Belt.
Save the Cosmic Express at Yedem.
Save the planet of Osupa.
Complete Sector Kos.
Complete Ataraxia. (Easy Path)
Complete Ataraxia. (Hard Path)
Shoot a dead ziggy out of the gun.
Shoot an alive ziggy out of the gun.
Complete the game with your original Ziggy.
Feed Ziggy 100 times.
Eject all cockpit assets at once.
Drain Ziggy 100 times.
Eject P.A.L. out of the eject portal.
Defeat 100 enemies.
Complete a run without being hit.
Pet the Ziggy.
Complete a run without use of the HUD.
Complete a run without use of the shields.
Complete a run without creating a new Ziggy.
Charge the same Ziggy 5 times.
Complete a run without use of the lights.
See every planet.
Complete the Tutorial.
Create a Golden Ziggy.
Load 3 Bombs into the ammo chute.
Finish a level with a mostly broken ship.
Complete a run in zero gravity.
Have the ship freeze over.
Have the ship burn up.
Have over 9 items in the mailbox.
Kyanos - Destroy a Special Battlecruiser & Finish the level quickly.
Kamney Belt - Save Eo without any damage.
Rumaraka - Don't get spotted by any enemies.
Yedem - Don't let the Cosmic Express take any missile damage.
Bardal - Collect the gems within the time limit.
Hephaestos - Shoot all of the cooling tower targets.
Khione - Collect all of the Alare Crystals.
Achyls - Destroy 3 enemies with a single blimp.
Osupa - Destroy all of the energy tanks.
Osupa - Let the planet be destroyed.
Okamahina - Escape the Planet in under x time.
Sector Kos - Destroy 5 Battlecruisers in Sector Kos.
Watch the Credits.