Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Blood Bath	Kill 200 opponents in BATTLEMODE.
Bonus Stage	Complete a Slayer Gate.
Breaker of Gates	Complete all Slayer Gates in a single save slot.
Crystal Craving	Upgrade Health, Armor, or Ammo.
Darn It, They Keep BREAKING	Perform 33 Unique Glory Kills in a single save slot.
Doomsday	Complete Hell on Earth.
Extra Extra Lives	Pick up 20 Extra Lives Total in a single save slot.
Fight Like Hell	Do 5000 damage as a Player Demon in BATTLEMODE.
Gunpletionist	Master all Weapon Mods in a single save slot.
Homemaykr	Spend 8 Sentinel Batteries in the Fortress of Doom in a single save slot.
Iconoclast	Kill the Icon of Sin.
If Only I Could Read...	Collect all physical Codex pages in a single save slot.
Interplanetary Fracking	Blow a hole in Mars.
It's a Magic Number	Kill 666 Demons.
King of the Crystals	Fully upgrade Health, Armor, or Ammo in a single save slot.
Man vs Monsters	Play 25 BATTLEMODE matches.
Master of Fasting	Complete a Mission with only the Famine Mode cheat on.
Meet Your Unmaykr	Acquire the Unmaykr.
Metal Head	Complete the album collection in a single save slot.
Mix and Match	Play as 5 different Player Demons in BATTLEMODE.
Nontraditionalist	Kill the Khan Maykr.
Playset Sold Separately	Complete the toy collection in a single save slot.
Reforged and Refueled	Acquire a new Crucible in Taras Nabad.
Reforged the Genie Lamp	Complete the cheat code collection in a single save slot.
Running Up the High Score	Complete Extra Life Mode with 10 Extra Lives in your Inventory.
The Hunters Became the Hunted	Kill the Doom Hunters.
The Once and Future Slayer	Complete the Campaign on any difficulty.
They're ALL My Favorite	Purchase all Praetor Suit Perks in a single save slot.
This One's my Favorite	Complete a Praetor Suit Perk category in a single save slot.
Thumbs Down	Best the Gladiator in the coliseum.
Treasure Hunter	Beat all encounters and Mission Challenges, and find all Items in Taras Nabad in a single save slot.
Truce between Demons	Heal yourself or your teammate for 50000 health in BATTLEMODE.
Weapons Expert	Kill a Player Demon with each of the 8 Slayer weapons in BATTLEMODE.