Defeat 50 enemies from-the-hip or blind-firing

Survive 30 consecutive waves with at least one co-op player.

Kill enemies of 6 different types during a single round.

Set 5 enemies on fire and then kill them with explosives.

Survive 15 consecutive waves using the analog combat controls.

Use a large medkit to heal an injury of 5% or less.

Survive 10 consecutive waves using only custom weapons.

Find all Journal Entries

Perform 20 headshots from the rope

Get three dolphins to follow the boat

Play any Arena in co-op.

Just prior to City Chase, stand perfectly still for 30 seconds (stage demo fail)