Complete your first wave.
Defeat the Roadwarden.
Collect a Time+ crate with at most 3 seconds left.
Collect a Health crate at 10% HP or less.
Complete a wave without firing your weapon. Special skills are allowed.
Defeat the Roadwarden without taking puddle damage during the fight.
Complete a wave without moving.
Complete 5 consecutive waves without taking damage.
Complete Wave 25 in Area 1.
Kill 5 enemies with one Frag Grenade explosion.