Complete the introduction training level.
Unlock one of the extra Spacesuits.
Unlock 20 levels.
Get a combined total score of 3 million on all levels.
Unlock the UFO upgrade.
Unlock all the levels.
Score 2 milion on any single level.
Unlock all of the extra Spacesuits.
Get a combined total score of 30 million on all levels.
Complete all the adventure levels. The blue ones!
Easy! Collect all the medals.
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5 
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