Complete all the trophies.
Get rid of the alien invasion.
Finish Stockii off.
Explore the inside of the mothership.
Get to reach the mothership's gate.
Destroy the wall to the inside of The Grandfather's building.
Get all the weapons.
Get all the life improvements.
Find the object lost within The Grandfather's labyrinth.
Find all the hot dogs Otis has lost.
Get all the power improvements.
Find 30 of the hot dogs Otis lost.
Find the dynamite in the cemetery area.
Catch The Grandfather's thug to get the key of the cemetery.
Eliminate the aliens at Elizabeth's restaurant.
Find the dynamite in the port area.
Complete the driving challenge of The Grandfather's thug.
Find the dynamite in the police station area.
Open the gates of the city center.
Get the master key to use the cars.
Find Luciano in the city sewers.
Save Elizabeth from the alien.
Catch The Grandfather's thug to get the key to his building.
Get to leave Timothy's building upon the alien arrival.
Get to Timothy's house after fighting The Grandfather.
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