Here is the full list of all 31 Go Fight Fantastic achievements.
Defeated the Chapter 1-boss "Froggy".
Defeated the Chapter 2-boss "General Poi".
Defeated the Chapter 3-boss "Corrupted Heavy".
Defeated the Chapter 4-boss "General Zev".
Defeated the Chapter 5-boss "Corrupted Zev & Poi".
Defeated the Chapter 6-boss: "The Empress".
Defeated TRUE villain "The End".
Revived downed characters over 50 times with the Healer.
Spent over 50.000 Coins.
Danced in front of a boss for 10 consecutive seconds.
Reached stage 30 in the Horde Mode.
Collected over 100 different Meteorites.
Dealt 1.000.000 total damage with the Striker.
Reached stage 20 in the Horde Mode.
Reached stage 10 in the Horde Mode.
Killed 3 unique enemies with a single Blood Bomb.
Reached stage 10 in the Horde Mode without getting downed.
Collected over 100.000 Coins.
Unlocked all entries in the Ship's Log.
Looked at any Empress-portrait for more than 30 seconds during a cutscene.
Found a Legendary Meteorite.
Grabbed 15 enemies with a single Magnetic Pull.
Collected all the music tracks.
Found the secret Night Club.
Managed to Pet Bowie!
Reached stage 50 in the Horde Mode.
Game Over for the first time.
Have spoken to EVERY bird NPC.
Defeated "The End" on the highest difficulty.
Leveled-up a Meteorite in the Meteorite Station Lab.
Bought a Corrupted Meteorite from Cyfrin.