No missable achievements (plus 15 unknown)
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You get this just because you're such a nice person.
Create a quad before the beatline has made its first pass of the level.
Have 3 active quads onscreen at once.
Find 6 different quad sounds on a level. Quads can be square, wide or tall, and either small or big.
Completely fill the grid in Free Mode.
Create a quad containing 80 cells or more.
Build up a score multiplier of 25 or more.
Score a total of 50 million points.
Play the original 5 levels in both Time Mode and Free Mode.
Receive one companion cube piece.
Create 7 quads on the grid in one pass of the beatline.
Get 100% coverage or more on the original 5 levels in 3 minute mode.
Create a single quad that covers the entire width of the grid on the original 5 levels.
Receive 50 companion cube pieces.
Receive 100 companion cube pieces.