ChainStaff

Get all trophies

Dismember 50 enemies

Rescue every downed soldier

Kill every downed soldier

Defeat the true final boss

Get all human gun upgrades

Die 12 different ways

Max out the ChainStaff

Max out alien gun upgrades

Capture a Star Spore

Eat 10 downed soldiers hearts

Eat 10 downed soldiers brains

Rescue 10 downed soldiers

Spear enemies to the wall

Swing a far distance without touching the ground

Decapitate an active soldier with the Super Spear

Kill or save your first downed soldier

Kill 3 enemies in one throw