| Achievement | How to unlock
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|---|
| A Little Help from Your Friends ( 25 points ) | Complete the Multiplayer game.
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| All Hail The Splode King ( 25 points ) | Complete the Single Player game in Hardcore mode.
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| Eventual Destruction of a Galaxy ( 10 points ) | Be on the lookout for an old friend.
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| Get Over Yourselves ( 10 points ) | Select "Credits" from the "Help and Options" menu and watch the whole thing.
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| Get Them Out of Our Schools ( 10 points ) | Eliminate 10 Scientists and stop them from spreading their filthy lies.
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| Lay Off the Caffeine ( 10 points ) | Let your hyper little brother play the game for a bit.
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| Master of Controls ( 10 points ) | Master the mastery of controlling your controls.
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| Not a Portal Reference ( 25 points ) | Collect all 47 cakes in Single Player mode.
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| Omaha Steaks, Delicious! ( 15 points ) | Create 5,000 filets.
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| Only Gandhi Would Be Proud ( 10 points ) | How long can you handle being a pacifist?
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| Sugar High ( 25 points ) | Collect all 47 cakes in Multiplayer mode.
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| You're the Best Around! ( 25 points ) | Complete the Single Player game.
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