Here is the full list of all 23 Mayhem Triple achievements.
Score a perfect 10 in death.
Kill 5,359.4 enemies.
Unlock every tontine treasure.
Finish the game without health upgrades.
Get Georgia Close's number. You creep.
Discover the secret to defeating the bunny threat and save the world.
Find the hidden magnums in the "House of Cards" chapter.
Find the hidden greasegun in the "Prologue" chapter.
Permanently kill the birthed alpha bunny.
Find the hidden Face-Trapper in the "Adobe Acrobat" chapter.
Save every hostage in the game.
Decapitate The Dire Bunny.
Buy every available health upgrade and weapon holster.
Kill 10 enemies with a single sawblade.
Cause 20 enemies to be destroyed by testicle bombs.
Just beat it!
Find a better way to kill a mech.
Destroy the helicopter in a special way.
Taze a crotch rocket.
Stake 30 bunnies to a wall.
Save a hostage.
Kill a bunny in midair while diving and holding 2 weapons.
Walk Outside!