Unlock the UFO upgrade.
Get a combined total score of 3 million on all levels.
Score 2 million on any single level.
Unlock 20 levels.
Get the multiplier to x10
Get the multiplier to x5
Complete the introduction training level.
Unlock one of the extra Spacesuits.
Unlock all the levels.
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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