Item description:

SAVE 0
Complete one more mission with 3 stars and the briefcase
Kill one more enemy

Trophies
The apprentice : 25 missions completed
The whistleblower : 25 briefcases collected
I <3 stars : 25 missions with 3 stars completed
The soldier : Defeat 50 enemies

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SAVE 1
DO NOT USE THIS SAVE
You can't unlock these trophies

Trophies
The savior : 50 missions completed
The informer : 50 briefcases collected
The stargazer : 50 missions with 3 stars done
The warrior : Defeat 100 enemies

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SAVE 2
Last mission in chapter 1 to complete with 3 stars and the briefcase

Trophies
The hero : complete all missions on chapter 1
The spy : collect all briefcases on chapter 1
The starlord : get 3 stars in all missions on chapter 1

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SAVE 3
Last mission in chapter 2 to complete with 3 stars and the briefcase

Trophies
The warrior : Defeat 250 enemies
The jungle hero : complete all missions on chapter 2
The detective : collect all briefcases on chapter 2
The jungle starlord : get 3 stars in all missions on chapter 2

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SAVE 4
Complete one more missions with a briefcases and 3 stars

Trophies
The hope : Complete 100 missions
The researcher : Collect 100 briefcases
The astrologer : Get 3 stars in 100 missions

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SAVE 5
Last mission in chapter 3 to complete with 3 stars and the briefcase

Trophies
The dragon hero : Complete all missions on chapter 3
The addict to information : Collect all briefcases on chapter 3
The dragon starlord : Get 3 stars in all missions on chapter 3

And finally the platinum,
No more League of Evil : Defeat the league of evil completing all challenges !

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Platinum save