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