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