Full list of all 84 A Robot Named Fight! achievements.
The base game contains 78 achievements, and there is 1 DLC pack containing 6 achievements.
Defeat Ooze Hart
Discover the Coolant Sewers
Defeat Cephalodiptera
Defeat all Cave bosses
Defeat Sluggard
Defeat all Surface City bosses
Defeat the Megabeast Core
Defeat the Megabeast four times
Defeat Moleman Shaman
Have Explosive Bolts that Deal 8 or more Damage
Defeat Metal Patriarch
Defeat all Factory bosses
Discover The Beast's Guts
Defeat the Megabeast six times
Defeat the Megabeast thrice
Possess 81 Nanobots
Have max health of 20 or higher
Donate 729 gray scrap to shrines
Have Fire Bolts with an attack delay less than 0.2
Have 18 or more nanobots at once
Fire a shot size of 4 or greater
Donate 512 gray scrap to shrines
Defeat Beak Lord
Defeat the Megabeast twice
Defeat White Wyrm
Kill 20 Champions
Donate 343 gray scrap to shrines
Possess 3 of Each Archaic Scrap
Donate 216 gray scrap to shrines
Have a max speed of 17 or higher
Have a shot speed of 22 or higher
Donate 125 gray scrap to shrines
Defeat the Megabeast once
Collect 100% of the items in a run
Defeat Polyphemus
Collect 4 orbs in a single run
Discover Every Teleporter in a Run
Discover The Buried City
Defeat Flesh Adder
Collect 4 energy weapons in a single run
Donate 27 gray scrap to shrines
Defeat Abomination
Defeat Mouth Meat Senior
Possess 99 Scrap
Discover The Factory
Defeat Wall Creep
Die
Discover The Caves
Defeat Mouth Meat
Defeat the Megabeast five times
Defeat the Megabeast in under 35 minutes
Defeat the Megabeast Core in under 50 minutes and collect 100% of the items in a single run
Complete the game with a collection rate less than 15%
Defeat Blightbark
Defeat Leviathan
Defeat Stalkus
Defeat Corrupted Miner
Discover the Crystal Mines
Defeat Skin Deviler
Complete Boss Rush
Complete Exterminator
Complete Mega Map
Defeat 14 Different Bosses
Kill 15k enemies
Discover Every Area