Hellbound achievements

5.56%
UNSTOPPABLE
Finish the campaign in HELLMARE! difficulty
5.56%
From Saibot with love <3
Find the developers message in The Core
5.56%
Hell-streak!
Kill 30 enemies during Hell Damage
5.56%
Veteran survivor
Get to the final wave in a survival arena
5.56%
Like the good old days...
Finish the campaign in Old School difficulty
5.56%
300% GOD
Complete all campaign levels in 300%
5.56%
"You're not supposed to be here"
Find the "You got stuck" message in Flying Souls
5.56%
Inception secret
Find the super secret area in The Heroes' Cemetery
5.56%
Blood bath
Kill 5 enemies (or more) with a single rocket or grenade of the Rocket Launcher
5.56%
Killer instinct
Survive more than 15 minutes in a survival arena
8.33%
300% MORTAL
Complete a campaign level in 300%
8.33%
Piñata time
Kill a Pygon using the Head Crusher