Divine Retribution
Not unlocked yetKill the level 12 boss
Every Nook and Cranny
Not unlocked yetFind all the secret rooms and hidden items
Four's a Crowd
Not unlocked yetBlow up at least four enemies with one shot
Grave New World
Not unlocked yetGet killed by an environmental hazard like poisonous water, lava, or a trap
Hide and Seek
Not unlocked yetKill the level 4 boss
I Don't Get It...
Not unlocked yetSpend three minutes trying to get past the gate in the first level of the expansion pack
Insane Time Traveler
Not unlocked yetBeat the game on hard without dying using only your first weapon
Invincible Time Traveler
Not unlocked yetBeat the game without dying
Just a Flesh Wound
Not unlocked yetGet killed by the fan on level 4
Lest Ye be Judged
Not unlocked yetKill the level 16 boss
Mega Destroyer
Not unlocked yetUse the OP Mega Destroyer for the first time
Mirror, Mirror
Not unlocked yetKill the level 3 boss of the expansion pack
Noob Fail
Not unlocked yetDie for the first time
Out on a Limb
Not unlocked yetShoot off a total of 50 enemy limbs
Pink Mist
Not unlocked yetGib enemies into a total of 500 chunks
Put out That Light!
Not unlocked yetDestroy 20 light sources (light bulbs, etc.)
Riddle of the Sphinx
Not unlocked yetKill the level 8 boss
Right Back Atcha
Not unlocked yetKill an enemy with the Reflector
Seasoned Time Traveler
Not unlocked yetBeat the game on hard
Self-Harm
Not unlocked yetGet killed by your own weapon
Skilled Time Traveler
Not unlocked yetBeat the game using only your first weapon
Speedy Time Traveler
Not unlocked yetBeat the game in 90 minutes or less
Thanks a Million
Not unlocked yetWatch the credits at the end of the game
This Level is Bugged!
Not unlocked yetSpend three minutes trying to get past the gate in the first Egypt level