Destroy All Humans! 2

Successfully complete the main missions to unlock more Arkvoodle Cult missions.

Complete various Arkvoodle Cult missions to unlock hidden items and a hidden weapon.

Successfully complete the indicated task to unlock the corresponding movie under the "Archives" menu:

Closing: Successfully complete the game.
Closing Animatic: Collect 50 Alien Artifacts and successfully complete the game.
Destroy All Humans Wrap Party: Collect 10 Alien Artifacts.
Intro Movie Happy Mix: Collect 30 Alien Artifacts.
Opening Movie Animatic: Collect 20 Alien Artifacts.
Salad Days With Pox And Crypto: Collect 40 Alien Artifacts.

Abduct a person with the Abducto Beam. Just after you select store, release L. They will slam into the saucer causing a huge bang.

When the battle begins, you should only have two weapons, the Zap-O-Matic and Disclocater. Neither of these weapons will work effectively enough to kill both Bongwater and the KGB agents. However at the start of the level, towards the left far wall, there is a large container of Revelade. Around these containers are small barrels. These are explosive barrels. Once the battle begins, quickly use the Jetpack to go towards the left side of the room. Once there, try to take cover behind one of the Revelade containers. While hidden, use your PK ability on one of the explosive barrels. Once you have it levitating, either quickly swing it at the KGB agent's or Bongwater's feet, or press Y again to push it towards them. Either will work, as the explosion is enough to take out almost all the KGB agents. Only about two to three explosive barrels are required to take out Bongwater. Do not get too close to the barrel when it explodes, as it will drain your shields drastically or kill you.