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