| Achievement | How to unlock
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| A drink, the solitude and my memories | Get to Timothy's house after clashing with The Grandfather.
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| A full hot dog please | Find all the hot dogs Otis has lost.
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| A place to rest | Find the dynamite in the cemetery area.
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| Among rats and odor | Find Luciano in the city sewers.
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| Armed to the teeth | Get all the weapons.
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| Being nice | Save Elizabeth from the alien.
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| But why do you hide? | Catch The Grandfather's thug to get the key of the cemetery.
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| But why do you run off? | Catch The Grandfather's thug to get the key of his building.
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| Drive carefully | Get the master key to use the cars.
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| Free squid for a year | Finish Stockii off.
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| Happiness is a hot dog | Find thirty of the hot dogs Otis has lost.
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| I should have paid attention | Get to leave Timothy's building upon the alien arrival.
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| I'd better leave soon | Find the dynamite in the police station area.
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| If the sea were ale, Timothy would go for a sail | Find the dynamite in the port area.
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| Jumping the queue | Eliminate the aliens at Elizabeth's restaurant.
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| Lost | Find the object lost within The Grandfather's labyrinth.
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| Peeling out | Complete the driving challenge of The Grandfather's thug.
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| Pyrotechnic performance | Destroy the wall to the inside of The Grandfather's building.
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| The allies' life | Get all the life improvements.
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| The allies' power | Get all the power improvements.
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| The city is yours | Open the gates of the city center.
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| The mystery ship | Explore the inside of the mothership.
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| Towards the mouth of the wolf | Get to reach the mothership's gate.
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| We shouldn't have landed here in this place | Get rid of the alien invasion.
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