Defeat the end boss

Have 20 enemies killed by propelling airvents in the 'Secret Base' level

Kill a German soldier by dropping the churchbell on top of him in the 'Killing Fields' level

Kill 200 German soldiers

Kill 200 zombies

Eat 50 cannoli

Kill 75 enemies with headshots

Defeat the Undead Knight Boss.

Find 6 the lost treasure.

Enter the house.

Collect the bounties on 3 mini-bosses.

Destroy 100 crates.